305tbi to383 tpi swap
305tbi to383 tpi swap
Im swapping my 1988 305 tbi from my 1988 transam,Im installing a 383 tpi. Im using a wiring harness and computer from a 1986 massairflow tpi.My Question is the iroc had a cable driven speedometer, my 88 has a VSS. HOW do i hook up my speedometer,
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Same way it's hooked up now.
You'd have to check the pin-outs for each harness to be sure, but I believe the VSS uses the same ECM pin, regardless of whether cable or electronic speedo.
You'd have to check the pin-outs for each harness to be sure, but I believe the VSS uses the same ECM pin, regardless of whether cable or electronic speedo.
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