I bought an 1988 325iS with no ECU and I need to find the correct ECU for it. Where do I check for part numbers to ifnd out what ECU I need. Thanks
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173ecu is what you need it is 1.3Motronic.
I have 3 spare if your interested.
1986 325es (69k) Garage Queen Buy It Now 10k;1986 325es (track rat) 2.7i How-To & 1.1/1.3Motronic UpGrade
1991 318is (daily driver) 1991 318is M42 Maintenance How-To;1989 325i (parts car) -
word. The 88 iS came with a 153 but the 173 is a much better direct swap out ECU for it.Need a performance chip for you BMW? Shoot me a PM and I'll get you taken care of!!
Taylor- Follow me on Instagram @e30_fiend
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