'87 325 w/ '89 m20b25 motor MISFIRE AT IDLE, rough

[Ginsterman98]

Numbers are much better. I would swap a injector from a cylinder that's working and see if the misfire travels with the injector.

[mbonanni]

I will doo that, but I think I will rmove the whole rail and crank it to see if all injectors are spraying. Just as much work, if not less, than switching a few injectors. If all spray then I will switch a few.

[Ginsterman98]

Let us know what you find. G/L

[mbonanni]

Located my problem.

Injectors 2 and 3 do not spray. I thought it might be the wires so I put wire 1-2 and 2-1 then 4-3 and 3-4. All injectors still sprayed minus 2 and 3.

Thank you

[Ginsterman98]

Easy fix, glad you found the problem.

[sweet3]

I'm not sure if you managed to fix the problem. But I had a similar problem when I first got my car. Turned out that my harness connector was corroded and the wires had come disconnected. I fixed my problem by getting rid of the old harness connector and soldering a new harness connector located under my intake manifold.