what kind of problems am i going to come across with this wiring harness and ecm?
vss,vats,speedo?




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1991 banditt2 #130 of 600
Project 350 TPI Banditt II
http://www.street-dawg-racing.cityslide.com
www.gcfba.com (Greater Cincinnati F-Body Association)
http://www.cincyspeed.com/

 

Did you pull it out of the car or did you buy it?

Was the harness for a firbird or camaro?
If itw as for a firebird, you're gonna have to relocate the battery to the other side.
(yeah, believe it or not)

It shouldn't be bad I mean. There is really only one of each type of connector.

-- Joe

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1989 Formula 350 4-bolt mains, Forged .030 TRW pistons, SLP 51010 Roller Cam, Comp-cams roller lifters,
Summit 1.5 roller rockers, World Products Sportsman II 2.02/1.60 heads, Edelbrock TPI Intake,
Cloyes Double Roller timing chain, Mellings oil pump: 13.5 @ 100.23 MPH

Since close of track : Ported SLP runners, Ported Plenum, AFPR, Autometer 100lbs F/P gauge, A/F ratio gauge, MSD 6AL, MSD Redline selector.

http://www.joesperformance.com

 

well the problem i'm having is i have no power going to the starter from the ign.switch also when i turn the key i have no power going to the fuel pump.

so am i going to have to put in a different under dash harness?

 

I bet that's your VATs acting up. What's your security light doing?

 

You should have a dark blue wire going from the VATS module, to pin L on the IP connector, to B6 on the ECM.

 

where is the VATS mod?

 

What harness did you change? Sounds like you only got the engine half of the harness, and then tried to plug the ECM into the existing harness under the dash?

Unless you can verify by detailed examination of a wiring diagram that the inside harness is the same on both vehicles (which it probably is not), then you are either going to have to re-pin the inside harness, or go back and get the rest of the wiring harness from the donor vehicle.