5th Gear Member
Join Date: May 2008
Location: San Francisco, CA
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*hmm.. you have "interesting" inputs. But thank you for the effort. My research tell me that there is only 1 specific ECU/ECM for the 1988 E30 325; but am not in the know what OEM # specifically.
Problems here arise from a "recycled" super ETA that i bought NOT in running condition. On inspection of the ECU, i found that it had a recycled 154 ECU - that bumps and stutters on accelaration & deceleration occasionally. Sometimes it's bad enough to kick tthe CEL into lighting. AFM, throttle switch, main relay, fuel pump relay, and ICV are all up to specs and in order, with no leaks on the intake.
I tried a 173 ECU/ECM which they say can be a replacement, but although it runs, i have the CEL on and runs very rough.