I'm putting a 91 350 tbi into my 94 vortec astro van. I need help with the engine wiring. What computer do I use and which wiring harness?
ANY help would be great. Thanks
I'm putting a 91 350 tbi into my 94 vortec astro van. I need help with the engine wiring. What computer do I use and which wiring harness?
ANY help would be great. Thanks
Have you considered buying the JTR manual on this swap? They're very thorough and will answer your questions. I put a TBI 350 in my previously TBI 4.3 and it went pretty smoothly, all things considered. I reused the existing harness (because I stayed with TBI).
(EDIT: I did extend my entire wiring harness, but this was tackled one wire at a time, soldered and heatshrunk, in order to be extra cautious about a heating issue. It turned out to not be necessary- and it was also mentioned in that very same book!)
Last edited by 89S10_Project; 07-22-2016 at 03:52 PM.
-Phil, in Charleston, SC
'89 S10 Blazer: SOA SAS: Dana 44s, 5.7L V8, 700R4; 35s, 4.10:1; TBI with 1227747 ECM
'94 Grand Cherokee: 4.0, 4" lift, 31s
'90 Jeep Cherokee: In progress: 5.7L V8,700R4,NP231C, D44s. TBI with 1227747 ECM
'87 Fiero GT: 3.8SC (initial research stage)
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