How to fix injector solenoid driver cylinder 2

How to fix injector solenoid driver cylinder 2. Thanks for watching and PLEASE SUBSCRIBE Mar 8, 2017 · sticking injector is a possibility or something mechanically wrong with a cylinder or two. There are other causes, but the swap test can help narrow them down considerably. Engine control module (ECM) – The ECM receives signals from the injector driver and controls the operation of the engine. This doesn’t really tell you anything, except that there is a problem with the engine. my steps going forward would be to remove the valve covers and check for oil at each injector spout. 3 Powerstroke injector can range from approximately $100 to $300 or more, depending on the brand and type. The ECM switches the ground, or "low" side of the injector solenoid coil, while the high side is powered continuously. Run the injector buzz test. Then, clean, flux and solder the wire. - First shop replaced the number 1 injector on June 17. This was after the truck failed a fuel injector test performed by the same shop. This means that the PCM had detected a malfunction in the second injector circuit. Component Location Jun 3, 2022 · Summary. Jan 18, 2023 · Step 3. A strong electrical shock hazard is present if the keyswitch is not turned off. txt) or read online for free. Apr 26, 2021 · For example, on a Ford V8, the cylinders are numbered 1 to 4 on the passenger side bank and 5-8 on the driver side bank. Four cylinder inline engines are numbered 1-2-3-4 beginning on the timing belt end of the engine. Faulty Fuel Injector. When the air/fuel mixture in your cylinder (s) is not able to burn normally and the difference is severe enough, it may cause a misfiring cylinder problem in your vehicle Diagnostic trouble code(DTC) P0270 stands for “Cylinder 4 Injector Circuit Low. We normally find that beyond this, cold knock issues will be evident. Dec 24, 2018 · It indicates that your car’s second cylinder has a misfire. 1 Symptoms of a Bad Fuel Injector in a Hyundai Sonata. Feb 15, 2024 · Decoding the P0302 Code: The P0302 code specifically indicates a misfire detected in cylinder 2. These failure modes apply to all kinds of valves, such as 2 way and 3 way Mar 13, 2024 · Single Injector: The cost for a single 7. Let the fuel sit for 5 minutes. This is the exact same process for P0201 P0203 P0204 P0205 & Siphon fuel or use fuel tank drain plug and drain fuel into a clear container. Aug 7, 2018 · High resistance or no current detected at number 4 injector driver or RETURN pin. Feb 14, 2018 · Are you having issues with your solenoid valves? It's easy to work out what the problem is. The fueling quantity and timing are then compared to a specified threshold. The Multi-Air system uses an electronically controlled hydraulic link between the camshaft and intake valve. 2 Removal of N2 Electronic Unit Injector. 99 . Injector Solenoid Driver Cylinder 2 - Mechanical System Not: Responding or Out of Adjustment 1142: Injector Solenoid Driver Cylinder 3 - Mechanical System Not Responding or Out of Adjustment: 1143 Injector Solenoid Driver Cylinder 4 - Mechanical System Not: Responding or Out of Adjustment 1144: Injector Solenoid Driver Cylinder 5 - Mechanical May 5, 2024 · RE: Injector Solenoid Driver Cylinder 1 Mechanical System Not Responding or Out of Adjust I Was sent the program for this persons truck today its bad to say the least. Don't have Davie4 and I'm limited with j pro 2019 or it has more functionality than i know. They knew I recently de-mandated the truck. If it’s bad enough to cause your 300’s check engine light to come on, you shouldn’t drive your car at all. May 22, 2019 · Figure 4. To diagnose the P0203 code indicating an injector circuit fault in cylinder 3, start by using an OBD-II scanner to identify the issue. Note: The definition of code P0264 might be different depending on the vehicle manufacturer. Causes of a single injector fault are: • Open circuit in the engine harness(es) or injector solenoid • High resistance in a single injector or injector Feb 4, 2022 · The amount of fuel injected depends on the duration of the injector solenoid activation in combination with the rail pressure. 4/Torqshift Spartan 310EL, Flo-Pro 4", White_monster air intake, RCD 4-link, RS9000's 584/1330 :rockon: P0201 is a diagnostic trouble code (DTC) for "Injector Circuit Malfunction - Cylinder 1". When the PCM sees voltage at cylinder 2 that is out of the normal operating range, it’ll trigger this code. The code P0202 stands for Injector 2 – Circuit Malfunction. Full Set of Eight Injectors: If you're replacing all eight injectors, the total cost can range from $800 to $2,400 or more, depending on the factors mentioned above. Nov 14, 2018 · Start the engine and wait for the check engine light to come back on. the flow was 30ml in 60 seconds (specs 200 ml in 60 secs max ). This is an older thread, you may not receive a response, and could be reviving an old thread. (specs min 140). And at about 400 or so miles into my trip CEL comes on. Nov 8, 2020 · the inlet fuelrestriction was at 2 hg. A malfunctioning fuel injector in Cylinder 5, an open or shorted wiring to the injector, and a bad PCM are three common triggers for the code. A faulty injector will cause the engine to misfire, and this will trigger the engine management light. ”. Oct 21, 2022 · Description: Injector Solenoid Driver Cylinder 2- Mechanical System Not Responding or Out of Adjustment Troubleshooting: Circuit Description The ECM uses diagnostic software to verify injector operation. Injector SYMPTOM(s) Check engine light on - Injector short circuit fault Diagnostic Trouble Code(s) & Dashboard Indicator Light(s): DTC/Light Description SPN 651 FMI 5 - Cummins FC 322 Injector solenoid driver cylinder 1 circuit current below normal or open circuit SPN 652 FMI 5 - Cummins FC 331 Injector solenoid driver cylinder 2 circuit Nov 14, 2018 · P0302 in the Kia Optima is a common OBD II trouble code. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. This Jan 6, 2009 · Check the resistance of that solenoid, and if it's the same as the others, swap it with another to see if the code follows. Examine the wiring harness and connectors thoroughly for any signs of Nov 28, 2018 · It indicates that your car’s second cylinder has a misfire. Grounding issues: A poor or faulty ground connection can disrupt the flow of electrical current to the fuel injector. If it changed to a different P030X code, the plug was bad. Apr 16, 2024 · Diagnostic Steps for P0203 Code. Each injector circuit has a dedicated low-side switch that completes the circuit path to ground inside the ECM. The 7. Kenworth dealer replaced the under valve cover harness and the Engine harness because it was oil soaked and they thought that might be the issue. The common causes of a P0067 code include a bad air assist injector solenoid and a faulty PCM. It’s a generic code, applying to all OBD-II equipped models. Injector codes Every fuel injector is calibrated during production to compensate for any production tolerances. Now my PCM has started throwing a P0204, Injector #4 circuit malfunction code. Injector Solenoid Driver Cylinder 6 - Mechanical System Not Responding or Out of Adjustment. Stop the “Injector Solenoid Test” before handling the jumper Sep 16, 2022 · The Diagnostic Trouble Code (DTC) P0204 stands for “Injector Circuit Problem—Cylinder 4. The poppet valve operation is electronically controlled Nov 11, 2020 · Here is a video of the parts inside of a 6. On a Chevy or Dodge V8, the cylinders are numbered 1-3-5-7 on the driver side bank and 2-4-6-8 on the passenger side bank. A circuit issue can also trigger the code. Feb 16, 2019 · Correction - The pump does turn on as it should on cold startup. 4 Repair of N2 Electronic Unit Injector Solenoid and Seals". Consult the appropriate repair manual or repair database for the exact code definition. • Measure the resistance between the injector solenoid 1 SIGNAL pin and the injector solenoid 1 RETURN pin at the pass-through connector. The code is set once the PCM detects low voltage from the cylinder #4 injector circuit in the firing order. 1 Rough Idling and Engine Misfires. Feb 9, 2022 · Summary. '08 F250 6. Whether it's stuck open or stuck closed, Clint's here to help. The P0411 code will cause engine performance problems like rough running and lack of acceleration. The following steps must be performed prior to removing an injector:‪ Note: The solenoid can be replaced without removing the injector. The P0067 code is logged once the PCM detects an incorrect signal from your vehicle’s air assist injector. Current is supplied to the ECU driver circuits 10 and 20 in example through the fuel Jan 14, 2023 · Code P0300 is often related to bad spark plugs or spark plug wires but could be caused by a number of issues relating to ignition and the air-to-fuel ratio in the cylinders. 3L utilizes Hydraulically actuated Electronically controlled Unit Injectors, commonly referred to as HEUI or “HUEY” injectors. Flowchart for Repair or Replacement of N2 Electronic Unit Injector. The Injectors are under the valve cover (s). Select Diagnostic Tests from the Diagnostics menu. Remove these gaskets and install new ones in their places. 7 Cummins injector. Dave. Typical hack-n-slash program that is h#ell bent on keeping it stuck in DPF warm-up mode that it cannot satisfy, torturing the pistons and injectors, the whole nine yards. 7. When we say clogged, we mean dirt has accumulated inside the injector that there's no fuel flowing through it. The 324 - Free download as PDF File (. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154. Then one at a time disconnect the pigtail to each injector and see if the smoking/knocking stops, if so you've found the bad hole. On standard MPI fuel injection, the injector is a two-wire circuit, with one side receiving system voltage (+) by way of a relay. In this episode Andy Phillips shows all the tests to conduct in order to properly test a variable valve timing solenoid, also know as a VVT solenoid. It's not a good scenario when your vehicle has clogged fuel injectors. If nothing changed, do this for the coil packs and plug wires (if equipped). Mar 13, 2020 · P0202 is a very common OBD2 trouble code. Jun 13, 2006 · 21,413 Posts. Oct 31, 2015 · If a single cylinder exhibits misfires, look for an open circuit problem. If everything is alright with the fuse and relays, you should further your inspection. Unlike a lot of the OBDII codes, this code Jul 3, 2022 · I want to personally thank everyone who has donated to the forum recently. Check fuel sample for signs of water in the clear container. P0202 is usually caused by a bad fuel Are activated out of order; the correct order is cylinder one (1) through cylinder (6) sequentially. Oct 20, 2021 · Hi everyone, So i have a p0205 (injector solenoid valve cylinder 5) and a p1496 (egr-shutoff). Repeat this test for each suspect circuit. Fixes include cleaning, replacing damaged components, and repairing electrical or cooling systems. A dormant injector will have a voltage close to the battery voltage, whereas an active one will have a voltage that is “low” near zero. It can also cause a rich running condition that can cause poor fuel economy and a noticeable rotten egg smell. A P0302 code can be caused by a bad fuel injector or a malfunctioning injector circuit. This code is set when the PCM detects that the injector’s voltage in Cylinder 5 doesn’t match its current state. The test screen is displayed. 5mm3 / stroke cold or hot. This can be caused by a malfunctioning fuel injector driver or a short circuit in the injector circuit. While the P0302 trouble code might be considered generic, the repairs could depend on the make and model you drive. If several cylinders on the same bank exhibit misfires, look for a short circuit anywhere in the bank of cylinders. 4. The ground signal at the injector plug is showing a full, constant ground, rather than a pulsing ground signal like it should be. The longer the injector sprays, the richer the fuel mixture becomes. High resistance or NO current detected at cylinder 5 injector supply or return pin. With the insite program you can quickly identify the bad injectors or at least what cylinder is failing with the Injector Performance test. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Melt a bead of solder onto the tip of the soldering iron. I sent back the PCM and got a replacement Apr 9, 2024 · I want to personally thank everyone who has donated to the forum recently. Below ar Nov 28, 2018 · Start the engine and wait for the check engine light to come back on. Diagnostic trouble code (DTC) P0302 stands for “Cylinder 2 Misfire Detected. Circuit Description: The injector solenoid valves control fueling quantity and injection timing Mar 13, 2020 · It indicates that cylinder 2 in the firing order has a fuel injector malfunction. Engine Management Light on Dash. 4 days ago · Peterbilt advised I "go for the kill" and replace the number 1 injector to save time and money on troubleshooting. It can also cause backfiring. Refer to "2. These issues often stem from debris, damaged parts, or electrical problems. (I hope). 1. Modern vehicles employ advanced engine management systems that monitor individual cylinder performance. Going to remove and inspect both check valves and hope to find something. Mar 4, 2024 · RE: Injector Solenoid Driver Cylinder 1 Mechanical System Not Responding or Out of Adjust I Was sent the program for this persons truck today its bad to say the least. When the PCM sees voltage at cylinder 2 that is out of the normal operating range, it’ll trigger this . However, it still sets code P0411 after a few cold starts. Each injector has a close and open coil. 5. You will need to investigate further to narrow down the cause of the misfire. Select Injector Solenoid Test from the submenu. 2 Diagnosis Process for Faulty Fuel Injectors in Hyundai Sonatas. 8 with 135,000 on it. Dec 9, 2022 · The cause of failure can be a simple short circuit after which the injector pulse will disappear. If the code stays P0302, you’ve ruled out ignition-related issues. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. It indicates that your car’s second cylinder has a misfire. The P1035 fault code refers to an issue with the Cylinder 1 Oil Supply Solenoid Valve Driver. If the remaining two injectors from that bank buzz, the unplugged injector has failed. You may have to get the ECM updated to support this test. Fuel mileage may suffer. It helps pay for the $790/month internet bill that the forum consumes. Solenoid assemblies, which may be referred to as solenoids, solenoid valves, solenoid switches, or "metal can" relays, have become more frequently used in automotive and industrial applications for actuation of loads, valves, and as electro-mechanical switches. P0302 is a real drivability concern and should be dealt with right away. Hold the bead of solder to the thermal until it flows onto the terminal. EFFECT: Engine can misfire or possibly run rough. Test the solenoid with a multi-meter, if the resistance is close to zero or infinity, it means that solenoid is either open circuit or broken circuit. Action Specification/Repair Next Step Check for a short circuit. Oct 30, 2015 · SPN: 655. For you guys that want to see the insides of them. Meanwhile, the mixture becomes leaner the shorter the injector sprays. Mar 6, 2023 · Current overload: Excessive current flowing through the fuel injector can cause the solenoid coil to overheat and fail. Jul 15, 2023 · 1 Hyundai Sonata’s Fuel Injector Problems. You may smell raw gas coming from the tailpipe. The engine control module (ECM) energizes the solenoid by closing a high-side and a low-side switch. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Feb 13, 2021 · Here we have an Audi Q5 3. Aug 26, 2017 · After that, the current is reduced to the amount needed to hold the injector open. It’s generic code, which means that it means the same thing for the Subaru Legacy as it would for any other vehicle. Unlike a lot of the OBDII codes, this code Step 1 Solenoid coil is short circuit or open circuit. If it’s bad enough to cause your Optima’s check engine light to come on, you shouldn’t drive your car at all. Feb 13, 2019 · How to Fix Fuel Injector Problems. Your driver circuit relies on this signal to activate the injectors as ordered. Oct 7, 2016 · To run the Injector Solenoid Test: 1). 1. The secondary air injection system is causing the engine light to illuminate. Driving a solenoid is similar to driving a motor. See the circuit diagram or the wiring diagram for connector pin identification. A failed coil pack or worn spark plug can also trigger the code. P0302 in the Kia Soul is a common OBD II trouble code. Feb 4, 2022 · The amount of fuel injected depends on the duration of the injector solenoid activation in combination with the rail pressure. 3 days ago · RE: Injector Solenoid Driver Cylinder 1 Mechanical System Not Responding or Out of Adjust I Was sent the program for this persons truck today its bad to say the least. Essentially, we like all of the individual injector corrections to be within +/-2. 6. Perform the “Injector Solenoid Test” at least two times. 2 six cylinder. Put a little bit of flux on the terminal after cleaning it up and removing any oil. During selected conditions, each injector is fired. It depends on how serious the misfire is. The problem is that we have a fault code for the secondary air injection system. This filter from my reading online and assumptions is the biggest culprit of damage and issues with other components like the valve switch it shoots air to. 4K. pdf), Text File (. I had a few more codes than these (listed below) but was able to take care of those. When the system detects combustion inconsistencies in cylinder 2, exceeding a predetermined threshold, it triggers the P0302 code. Use a fuel-injector cleaning kit. What my fix does is eliminate the internal filter with an external K&N filter. Feb 4, 2022 · 2013 PACCAR MX-13 – P0205 Injector solenoid valve cylinder 5 – Current too low or open circuit Diagnostic Step-by-Step Perform the troubleshooting steps below using the breakout harness, if necessary, to check electrical components, such as sensors, electrical control units, and harnesses. Add a comment. Mechanic just called me, he said it's failing because the cylinder heads/ports are clogged with carbon and would be a $2800 to $3500 job to fix. Jan 11, 2016 · So this fix is to correct the horrible and cheap design of the foam 'filter' used in the system. the fuel gear pump pressure was 177 psi. Like. It is set when the voltage signal is higher than the set parameters. These injectors utilize high pressure oil which is controlled by a poppet valve inside the injector to achieve injection pressures of up to 21,000 psi. I want to personally thank everyone who has donated to the forum recently. Drive Circuit (PCM) Failure. Misfires in 2 cylinders close to each other imply blown head gaskets, which is shown in the oil coolant, bluish exhaust smokes, and oil leaks. Repairing P0302 should be considered a Jan 28, 2017 · I bought a refurbished PCM online and it fixed my problem and worked fine for approx 6 months. 2. The injector solenoid valves control fueling quantity and injection timing. Oct 19, 2020 · Table 4; Troubleshooting Test Steps Values Results; 7. It’s generic code, which means that it means the same thing for the Mazda CX-9 as it would for any other vehicle. Read More: How to Connecting Caterpillar ET Software to the ECM. Remove the head gaskets if there’s no compression in the nearby cylinders. The P0205 code stands for “Cylinder 5 Injector Circuit Malfunction”. The electronic control module (ECM) energizes the solenoid by closing a high-side and a low-side switch. Nov 28, 2018 · Start the engine and wait for the check engine light to come back on. 3). Check engine light. If these sensors fail, your injectors may lack a pulse despite having power. Your Ram may produce excess vibration, especially at lower RPM. SRT: REASON: Injector Solenoid Driver Cylinder 5 Circuit - Current Below Normal or Open Circuit. Nov 28, 2018 · Here are the most common symptoms of P0302 in the Dodge Ram. Jul 3, 2022 · I want to personally thank everyone who has donated to the forum recently. 2). the high fuel pump pressure followed the commanded pressure requested by the ecm. The truck itself may begin to run rough. 3. The code is triggered once your ride’s PCM detects frequent misfires on cylinder 2. The longer the solenoid is activated by the PCI ECU at the same rail pressure, the more fuel is injected. Sep 15, 2016 · Use a high watt, 130w or more should do it, soldering iron. In this article, we will discuss the causes of this problem and how to solve it in a professional and analytical tone. This issue can lead to poor fuel economy, reduced engine power, and increased emissions. Component Location Feb 10, 2022 · P0302 definition: Cylinder 2 misfire detected. 3 Strong Odor or Black Smoke from the Exhaust. Have it done by a professional. Nov 9, 2011 · The IDM transmits a high and low side drive output to the injectors. Circuit Description: The injector solenoid valves control fueling quantity and injection timing. Sep 29, 2023 · The code is logged once a potential airflow issue is detected in the secondary air system. When the injector is not being turned on by IC608, that Mar 12, 2024 · Injector driver – The injector driver controls the fuel injection timing and provides a signal to the injector to open and close. Once the code is confirmed, focus on wiring troubleshooting techniques to pinpoint the root of the problem. In this video I diagnose a P0202 cylinder 2 injector circuit malfunction fault. Oct 29, 2020 · Insert the other end of the jumper wire into the P300 connector socket for the suspect injector return wire. FMI: 5. Dec 24, 2018 · Start the engine and wait for the check engine light to come back on. Fault Code: 1145 PID: S006 SPN: 656 FMI: 7. Feb 21, 2022 · P0171 definition: Bank 1 has too much air or not enough fuel. It indicates that cylinder 2 in the firing order has a fuel injector malfunction. Turn the keyswitch to the OFF position. #21 · May 30, 2021. Section 2. If not, start pinning out the harness. This valve is part of the Multi-Air system, which controls the intake valves in a more precise and independent manner. Troubleshooting can lead you to the fuel injectors needing to be cleaned, if an engine is experiencing any of the classic symptoms of dirty injectors, such as lean misfire, rough idle, hesitation and stumbling on light acceleration, a loss of power, and higher hydrocarbon (HC) and carbon monoxide (CO) emissions. #commenrailToyota 2kd engine injector2kd engine injector rebuildHow to 2kd injectorCommon rail injector repairVigo injector repair2kd injector systemToyota 2 Jan 7, 2023 · The Powertrain Control Module (PCM) detects that a misfire is occurring in the 2nd cylinder in the car motor, thereby alerting the engine to set this trouble code. The low side output supplies a return circuit to each injector coil. G. 2 Decreased Fuel Efficiency and Power Loss. Remove valve cover. Check the Injector Harness under the Valve Cover for an Open CircuitA. That doesn't mean the connection between the injector and the ECM control component (in this case I believe IC608) is a ground. The PCM will set the P0204 code if the injector’s voltage does not match the voltage expected for its state. Each of the fuel injectorsis equipped May 14, 2023 · One of the most common engine problems is the default code Injector Circuit Malfunction - Cylinder 1. The high side output supplies the injectors with a power supply of 48 V DC at 20 A. perfomred cylinder injector cutout tests, all injectors are Apr 24, 2024 · Summary. May 1, 2024 · RE: Injector Solenoid Driver Cylinder 1 Mechanical System Not Responding or Out of Adjust I Was sent the program for this persons truck today its bad to say the least. F. Truck just got serviced (2oil and 2fuel filters) and was running Apr 28, 2024 · Injector Solenoid Driver Cylinder 6 - Mechanical System Not Responding or Out of Adjustment 2013 ISX15 CM2350 Demandated April 2020 @m*m^2 from this form (name left off) 610,000 OD 6 new injectors and connectors 430,500 OD March 2018 Left Dallas on my twice a week run up to Colorado Springs. So basically, if the fuse is blown the motor will stop working as the injectors aren't getting any power at all. If open circuit or broken circuit happens, you need to change a new solenoid coil. Each of the fuel injectors is equipped with a solenoid-operated valve that allows pressurized fuel to flow out. Causes of a single injector fault are: • Open circuit in the engine harness(es) or injector solenoid • High resistance in a single injector or injector Dec 24, 2018 · Start the engine and wait for the check engine light to come back on. This will replace the injector solenoid with a short circuit. Onc Mar 22, 2022 · 1. 3. CODE. After a few days the codes returned. Jul 12, 2018 · Diagnosing: By far and away, the most common causes of failure is the cold knock, however to properly diagnose it, it’s only logical that we view the car when cold. Injector Solenoid Driver Cylinder 1 Circuit - Current below normal or open circuit XXXXXX 323 655 5 Amber Engine Injector Cylinder #05 Injector Solenoid Driver Cylinder 5 Circuit - Current below normal or open circuit XXX X 324 653 5 Amber Engine Injector Cylinder #03 Injector Solenoid Driver Cylinder 3 Circuit - Current below normal or open 4 days ago · Got a 2015 ISX with multiple Injector Solenoid Driver Faults - Mechanical system not responding or out of adjustment. Jun 6, 2021 · 1. preformed injector fuel return test. Go the Do-It Yourself (D-I-Y) Route. Nov 15, 2022 · In a few instances, a worn belt may prevent your camshaft and crankshaft position sensors from syncing up, which causes the sensor to send an erroneous signal. 248K views 2 years ago #HowToFix #P0202. Nov 14, 2018 · Replacing the spark plug or coil packs is the most common fix for P0302 in the Kia Soul. In other words, the PCM commanded the injector on/off but did not see the subsequent change in electrical current. These “drivers” are actually powerful transistors within the ECM/PCM. Diagnosis: It is important to complete the entire diagnostic 331 Injector Solenoid Driver Cylinder 2 Circuit - Current Below Normal, or Open Circuit 332 Injector Solenoid Driver Cylinder 4 Circuit - Current Below Normal, or Open Circuit 338 Idle Shutdown Vehicle Accessories Relay Driver Circuit - Voltage Above Normal, or Shorted to High Source Jan 6, 2017 · Another common issue is a too low differential pressure for indirect operated solenoid valves. Repairing P0302 should be considered a high priority. Issue Severity: SEVERE – Stop driving immediately. Oct 25, 2005 · Just bought a 2001 A4 B5 2. If it’s bad enough to cause your xB’s check engine light to come on, you shouldn’t drive your car at all. We replace the secondary injection Mar 21, 2017 · • Disconnect the injector harness from the injector solenoid. Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine Jul 23, 2021 · An electromagnetic coil opens the injector whenever the “drivers” in the ECM/PCM are triggered to activate the injector coil. Unplug the first injector in the bank where the defect is suspected. Connect Caterpillar ET Software to the ECM. kl wl ut dq oe pl hs an nt mr