What does p0202 mean on an injector circuit?
P0202 means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled “low” or close to zero. When the injector is switched off, the PCM expects to see a voltage that is close to battery voltage or “high”.
What is the trouble code for a fuel injector?
P0208: Injector #8 Control Circuit. From personal experience, I can tell you that around 90% of the time, when you do have a bad fuel injector, you’ll see a misfire trouble code: P0301: Cylinder #1 Misfire. P0302: Cylinder #2 Misfire.
What’s the trouble code for a Jeep Grand Cherokee?
I have a 2001 Jeep Grand Cherokee 4.7 120,000 miles.Was running fine,idled a little low.one day went to start and idles very rough and stalls.Getting codes p0202,p0175,p300,p301,p302.swapped coils on 1 and 2 (cleared codes first) and still idles rough but now not throwing any codes?… Need help.
What to do if OBD-II cylinder 1 injector does not work?
If you have access to an injector tester, activate the injector and see if it operates. If the injector operates, then you likely have either an open in the wiring, or a blocked injector. If you do not have access to a tester, swap the injector with another one and see if the code changes. If the code changes, then change the injector.
What to look for in a jeep p0202?
Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P0202 JEEP code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
When to set p0202 injector circuit open cylinder 2?
The P0202 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injector 2. Engine Control Module ( ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation.
I have a 2001 Jeep Grand Cherokee 4.7 120,000 miles.Was running fine,idled a little low.one day went to start and idles very rough and stalls.Getting codes p0202,p0175,p300,p301,p302.swapped coils on 1 and 2 (cleared codes first) and still idles rough but now not throwing any codes?… Need help.
How to check for a fuel injector problem?
First, using a DVOM check the resistance of the injector. If it isn’t within specs, then replace the injector. Check for voltage at the fuel injector connector. It should have 10 volts or more. Visually check the connector for damage or broken wires. Visually check the injector for damage.