I have a 93 civic with the 1.5L. I am only running on 3 cylinders as i found by pulling spark plugs til one didnt change the idle. I checked the compression. The results are as follows. 1st cylinder 180 psi, 2nd - 75psi - 3rd 120 psi and 4th was 25 psi.

I ran the tests numerous times to verify the results. Does anyone have any idea what Im looking at repair wise?

Thanks