Chrysler 300 Misfire Cylinder 4 Code P0304

10

Asked by t Sep 06, 2020 at 11:37 AM about the 2006 Chrysler 300 RWD

Question type: Maintenance & Repair

Code says misfire in cylinder 4. I have already changed all
the spark plugs, ignition coils, and the fuel injector for
cylinder 4. I have tried swapping the plugs and swapping
the coils to see if it was a faulty plug or coil. No.luck. Any
suggestions on what I can do to diagnose what is causing
the misfire?

9 Answers

60

When you have an obsession with underage girls such as ed here its likely caused by some mental health disorder.. everyone plz try to get ed into rehab before he molests again

4 people found this helpful.
10

New code popped up p0204 which for the fuel injector circuit malfunction in cylinder 4. If I already replace the injector what could that be. Im also going to try the compression test and let you know.

10

Ran a resistance check on the wiring to the injector in question. Is getting 300 ohms less than the average, and found that 2 other injectors were getting 200 more ohms than average

10

I got 16 ohms on the majority of them. On cylinder 4 it was 14.5

10

The high resistance was on the injector wires, not the injector themselves. I will try the noid light.

10

I disconnected it, looked through the wires connected to the injectors, and couldnt find any issues with soldering, or rubbed or even burned wires. I reached out to the former owner and asked if he had done anything with the wiring, and he said the ony thing he did was disconnect the battery and replace it. He said he accidentallly hooked it up backwards then corrected it. Could that be the issue? Maybe he shorted something in the ECM? Because I also have ABS lights on, but brand new brakes, calipers, rotors, and rear speed sensors.

10

Okay, headed to a local Shop in the morning that I know has a scanner that can test the entire system.

1 people found this helpful.

Main brain box is damaged try changing it. But it must be programed for that specific car.

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