90-91 Map connector 3 wire color order

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Feb 22, 2025 | 06:25 PM

Eduardo L98 1991

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From: Acapulco Guerrero

90-91 Map connector 3 wire color order

Please somebody with c4 map L98 engine quick easy help

I replace map connector and probably I lost the correct order

could you please in your map the wire color order from left to right

on my car the color options are :
1.- olive green
2.- tan
3.- pink-black
at this moment I have from left to right installed 5v, signal, ground
I only found 1 photo of map sensor at this site, with no color match

Last edited by Eduardo L98 1991; Feb 22, 2025 at 06:42 PM.

Feb 22, 2025 | 06:38 PM

WVZR-1

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If you have the FSM use 6E3-C1-20 for cavity identifications. Use VIN 8

Feb 22, 2025 | 06:41 PM

Eduardo L98 1991

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From: Acapulco Guerrero

I dont have it

Feb 22, 2025 | 06:43 PM

WVZR-1

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Quote:

Originally Posted by Eduardo L98 1991

I dont have it

You don't have the FSM(Factory/Field Service Manual)? Sounds like you need for sure.

Email/PM me I can supply the FSM and also a GM SPO Parts Catalog for your car.

Last edited by WVZR-1; Feb 22, 2025 at 06:52 PM.

Feb 22, 2025 | 08:00 PM

Eduardo L98 1991

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From: Acapulco Guerrero

awseome ! thanks a lot !

im correct; then my problem is not here

tps I supse is the same

yes I needed, exist digital version, Im in Acapulco ?, cheers !

Feb 22, 2025 | 08:01 PM

WVZR-1

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Quote:

Originally Posted by Eduardo L98 1991

awseome ! thanks a lot !

im correct; then my problem is not here

tps I supse is the same

yes I needed, exist digital version, Im in Acapulco ?, cheers !

I can deliver there no problem!

Feb 22, 2025 | 09:24 PM

Eduardo L98 1991

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From: Acapulco Guerrero

great !

Feb 22, 2025 | 09:27 PM

Eduardo L98 1991

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From: Acapulco Guerrero

with this map connctions :

voltmeter, engine stop, line signal have almost 5v like 5v reference, when I aplied vacuum with pistol vacuum, signal volt decreases, this is normal or is inverted
tunerprort, engine stop map reads 101, and decreases at cranking