p0202 code
I have a 2000 dodge durango 4.7l and i am having a rough idle and massive misfire, truck will barely stay running and will drive with a heavy misfire but the minute i let off gas to stop it stalls immediately. I have replaced the Crankshaft sensor, camshaft sensor, all the spark plugs and all of the ignition coils, problem still persists , no change at all. I am throwing the following codes p0340 p0302 p0301 p0351 p0355 p0300 and p0202. Someone pleae help! i am completely stumped . .
My car has 120000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello, thank you for writing in. With all of the changes you have made, if the problem was an ignition issue, you would have seen some kind of change. With so many different cylinders and systems being effected, your issue may lie with the main computer. You are having both spark and fuel issues, which are two completely different systems. The camshaft and crankshaft position sensors would keep these two systems in check. The Powertrain Control Module (PCM) is responsible for the communication between these systems, and for any compensation the engine makes for changes while driving. For more help diagnosing the stalling issue, contact our service department to schedule an appointment at your home or office.
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What the P0202 code means. P0202 indicates that the ECM has detected a malfunction for the cylinder 2 injector circuit. The code is set once the ECM detects out-of-range voltage or resistance. The malfunction causes the ECM to set a Check Engine Light and a failsafe mode.
Possible Fixes
Check all wiring and connections for looseness or damage; perform wiggle tests while the engine is idling. Check for other misfire-related codes in the PCM.
An expert will not recommend driving if your vehicle is showing P0200, P0201, P0202, P0203, or P0204 codes. Continuing to drive with these codes active can create serious problems with your vehicle`s function, and poor engine performance or engine misfiring can seriously damage your engine for good, not just right now.
The P202 engine code indicates that there`s a problem with the second cylinder of the injector circuit. Usually, it`s a change in voltage or resistance that is altering the correct amount of electricity being sent to the engine.
What Does Code P0302 Mean? P0302 definition: Cylinder 2 misfire detected. Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine compression.
What causes cylinder 2 to misfire? A misfire is usually caused by a bad spark plug or another problem with the spark system. It could also be caused by: a problem with how the fuel gets to the engine. Other issues could be a technical problem with the engine or the exhaust gas being recycled.
Contaminated or dirty fuel injectors, engines that burn oil, and even a very dirty air filter can cause O2 sensors to become faulty. Dirty fuel or oil leave carbon deposits on your O2 sensor, which cause it to misread oxygen levels.
One of the obvious symptoms of a clogged fuel injector is the lighting up of the “Check Engine” light in your dashboard. The fault codes usually associated with a clogged fuel injector can range from misfire codes to lean codes.
That problem is solved by adding a second set of smaller injectors to the fuel rail that only operate when the engine isn`t being worked hard. This way, the engine can run normally at idle, but still get enough fuel at full throttle. Another reason for using two injectors instead of one is fuel economy.
p2285 Code – Injector Control Pressure Sensor Circuit Low | KBB.
P2290 is an OBD-II generic code for the engine control module (ECM) detecting the injector control pressure is too low. This is a difference of commanded fuel pressure and actual pressure. This code is used on direct injection diesel engines.
Your fuel pressure regulator is built into the fuel filter assembly which is located above the rear differential, in front of the fuel tank.
P2290 is an OBD-II generic code for the engine control module (ECM) detecting the injector control pressure is too low. This is a difference of commanded fuel pressure and actual pressure. This code is used on direct injection diesel engines.
If you are talking about car fuel injectors then it means just that – that the electrical circuit is “open” and not closed, meaning electrons will not flow. Either a lead wire or the injector coil itself is broken, though there can be other reasons.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
I have a Code P0601 on the PCM. I replaced the PCM, and now I have a code P0118, code P0123, and code P0193.
ANSWER : Hi there, the short answer to your question is no . A PCM with a P0601 (which is a memory module error in the PCM) cannot reliably retrieve codes for the codes you list (P0118 – coolant temp sensor, P0123 – throttle position sensor, P0193 – fuel rail pressure sensor.
Most likely, the P0601 prevents the PCM from getting any codes from the engine sensors. The memory module error may cause in data corruption for collected sensor values, lose of data over multiple sampling periods, or failure of the data collection to work at all. Replacing the PCM was a necessary expense.
If you need assistance with the "new" codes, I would recommend having a Check Engine Light inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose the new error codes and get an accurate assessment of the repairs needed.
Can i retrieve CEL code from car … forgot what code it hade in my car .. put headgasket sealer and i erase the code ..
ANSWER : Once a trouble code is erased, it cannot be retrieved. The engine controller does not have a "recycle bin" like they have on Windows. If the car still has a problem, the code will come back up after some driving. However, the controller will not turn on the CEL until it has seen the malfunction on two separate "trips." A "trip" is a driving cycle where the car is started cold, driven until it is fully warm and through a certain number of accelerations, and shut down. So you might not see the CEL for a couple of days. As for the "head gasket sealer," I wouldn’t hold out too much hope of that solving a problem. At the very best it might put off the symptoms for a short while. If you need help interpreting codes that come up, or solving a head gasket issue, contact Your Mechanic. They can send a technician to your home or office to read the codes on your car and help you decide what to do.
It threw a code 21 , throttle position sensor bad code. i replaced it and the code went away but i still have no spark.
ANSWER : Hello and thank you for contacting YourMechanic. The problems that you are encountering with your vehicle, could be caused by the harness to the Throttle Position Sensor (TPS) or the computer itself.
Check the harness to the TPS for any debris or any corrosion. Hook up a paperclip to the harness and turn on the key. Use a multimeter and check for voltage at the pins of the harness. Make sure that the ground on the sensor is grounded and has no resistance. If you find that the harness is having too much resistance, then I recommend having the main engine harness replaced. If you have replaced the harness and still have the same problems, then the computer will need to be flashed or replaced.
I recommend having a professional, like one from YourMechanic, come to your home to diagnose your car’s no start condition before replacing any parts.
I have injector circuit open on 2, 4, and 6 error codes (codes P0202, 204, and 206)
ANSWER : Hi James. I would suggest purchasing a service and repair manual for your 2006 Cadillac CTS, as it will provide you with a wiring diagram for the fuel injector wiring. It is very common on these Cadillac’s for the wiring harness to become damaged due to excessive heat, from the fuel injector, behind the engine and to the ECU. I would be proactive and replace these wiring harnesses. This should resolve the issue or confirm that you have an ECU issue; which I would wager is highly unlikely. Good luck and thanks for writing in.
EGR code, Cylinder 4 misfire code 0304 detected.
ANSWER : Hi there. The Exhaust Gas Recirculation (EGR) valve may be not designed for the emissions requirements for U.S. standards. If the EGR is pulling from cylinder number 4 and after replacing the EGR and the computer detects a misfire, then the EGR is malfunctioning and not responding. When you close off the tube to the EGR and the EGR light comes on and the misfire light goes out, then the EGR is not responding to your emissions system. I recommend replacing the EGR with the OEM specified part for the engine and all of the issues should go away. If you need further assistance with your misfire and EGR, then seek out a professional, such as one from Your Mechanic, to help you.
Check Engine Light codes. 2006 Mercedes Benz E55 AMG
ANSWER : Since you are getting many different codes from different areas of the engine, you may need to have the system hooked up to a factory scanner since most of these generic codes do not cross over in my repair software. I would also check with the local dealer to see if any service campaigns are open on the vehicle since there are over 30 possible campaigns that could pertain to this vehicle and some of the problems you are having with the secondary air system. This may be the cause of some of the codes and supercharger disabling. If you’d like to have this checked elsewhere, a qualified pro from YourMechanic can come to your car’s location to go through each Check Engine Light code firsthand and have them resolved.
Service engine warning, MAF code and O2 sensor code, along with check suspension light are turned on
ANSWER : Hello, it sounds like you have quite a few things going on. I am going to do my best to break them down for you.
First if the engine is very loud when idling and the belt has already been replaced, there may be an issue with the tensioner or idler pulley.
Next, the Navigator is known for needing service to the air suspension system as it gets up in miles, the most common causes of these are the air struts themselves have failed, or one of the air lines has a leak.
Lastly, if the O2 sensor and MAF are continually coming back after the sensors have been replaced, the most common cause would be either an exhaust leak or a vacuum leak.
Qualified technicians such as the ones at YourMechanic will be able to diagnose these issues and recommend the best path to repair, starting with a diagnosis of your warning lights.
I had my ECS replaceed and my TPS and the code for TPS was gone but the ECS code came on after 5 miles is it possible the new one
ANSWER : There is a possibility the new module is faulty, but there may be something else going on with the car as well. Wiring can be an issue with these vehicle so consider hiring an experienced technician like one from YourMechanic to loo at the car and offer a personal diagnosis. You can have bad knock sensors offering false readings or some faulted wiring.
