MAF-T White Wire...on a 1990.

[tsi1991awd]

I know the 90 and 91+ CAS are different. I am wiring up the MAF-T and need to hook up the WHITE wire from the MAF-T itself. Which wire do I tap into on the CAS side? I know it is NOT the same as the 91+.

 

[Pursuit]

I know the 90 and 91+ CAS are different. I am wiring up the MAF-T and need to hook up the WHITE wire from the MAF-T itself. Which wire do I tap into on the CAS side? I know it is NOT the same as the 91+.

The white wire gets hooked up to a clean rpm signal

you can tap it to the thinner black wire on the CAS

 

[tsi1991awd]

The black wire is for the 91-94. The 90 does not use the black wire, which is why I am asking which wire to use.

 

[Pursuit]

The black wire is for the 91-94. The 90 does not use the black wire, which is why I am asking which wire to use.

There are 3 plugs on the ECU (small, medium, large). Pin 21 is on the large plug, bottom row, 4th pin from the right. It will be pin 21 for all 1Gs, including 90.

Thats the RPM signal you can see the wire color and find it under the hood.
If you have the dsm book you can see the wiring diagram and see where this wire goes.

http://www.vfaq.com/mods/ecu-harness-1G.html

 

[tsi1991awd]

Gotcha. RPM signal comes from the Yellow wire off of the CAS side. This wire corresponds with a black wire on the engine side. I just tappe it off of the CAS earlier. Thanks man

 

[Pursuit]

Gotcha. RPM signal comes from the Yellow wire off of the CAS side. This wire corresponds with a black wire on the engine side. I just tappe it off of the CAS earlier. Thanks man

no promblem i am glad you got it