I have a problem with my 1985 e30 325E 2.7. It seems to stall and backfire at 2.5K RPM. The car has no power, even less when going up a hill.

I put in new rotor, distributor cap, and spark plugs. Checked the AFM, the FPR, and even swapped the computer. It ran good, for about 10 mins, after I replaced the spark plugs then it started to sputter again. I tried different things as suggested in this forum, unfortunately the problem still remains.

Have not checked the catalytic converter or coil, those are next on my list. This is giving me a major headache. I don't know what to do, maybe sell it for $500 and start saving up for a Honda.

Any suggestions?