I just finished up putting a motor from a 87 325is into a 88is. I am not getting spark or fuel. Is there a wire trick I am forgetting about with this early model motor being put into a late model? The only difference I am seeing are the wires that are right next to where the DME and harness connect but I didn't think these provide any signal for the DME to do its thing.
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As an aside, this is illegal as far as I know.
I believe it is illegal to swap in an engine older than the chassis. Not that anyone will likely find out.Originally posted by z31maniac -
I can't think of anything either. Just an engine swap right? using the 88 engine harness? or 87? I assume you changed the water pump to the later style right?"I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj
85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
88 M3 - LACHSSILBER/SCHWARZE
89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER
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Yeah, cooling system is the only thing I could think of. And I did change every cooling thing for the late model style. I used the 87 harness. I could always change it out if need be but I cant think of why I would need to.Comment
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Originally posted by 87e30 View Post
illegal.? that was the whole point of it and that turbo kit toComment
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Use the original engine harness!! (Not the 87) Everything will work perfectly.Comment
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Is there any difference besides the fuel rail?Originally posted by MR 325 View Post87 325iC 90 325iC 88 325iC 87 325i 87 325iS 87 325eSComment
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yeah, didn't know 87 harnesses were useless. Tossed the 88 harness in and drove off. I also had to change the starter and fuel rail harness. This motor has a lot more oomph than the motor with 441K had.Comment
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87 harness is perfect for an i swap in to an early model e though! :)Comment
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