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Discussion Starter · #1 ·
i bought a used big stuff, and the guy changed the TPS and IAC plugs.

i am using a GM IAC and a Ford TPS

can someone help me locate the correct wires to the Ford TPS. i have black, green and orange off the TPS sensor. what are the corresponding BS3 wires

and

the GM IAC has 4 spots A B C D in a square.

what BS3 wires go to which letter..

Thanks in advance
 

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Here is what I have in my notes, from building my wiring harness.

GM 4 Pin Square IAC
ECU Pin, Wire Name, Color, Sensor Pin
P1, IAC A LOW, Blue/Red, C
R1, IAC B LOW, Blue/Black, A
P2, IAC A HI, Yellow/Red, D
R2, IAC B HI, Yellow/Black, B

Ford 3 Pin TPS
ECU Pin, ECU Wire Color, Ford Sensor Wire Color
??,Black, Black
B1,White/Red, Green
??,Red, Orange

I think the Black TPS wire goes to ECU Pin E2, and Red TPS wire goes to ECU Pin E1, but I'm not sure without crawling under the dash in my car and checking the harness. Let me know if you really need those 2 ecu pins confirmed? If not I won't bother.

Cheers.

Craig
 

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Ok I screwed that up. The IAC wiring is wrong it is actually for the LS1 Inline IAC. Here is the corrected wiring.

GM 4 Pin LS1 Inline IAC
ECU Pin, Wire Name, Color, Sensor Pin
P1, IAC A LOW, Blue/Red, C
R1, IAC B LOW, Blue/Black, A
P2, IAC A HI, Yellow/Red, D
R2, IAC B HI, Yellow/Black, B

GM 4 Pin Square IAC
ECU Pin, Wire Name, Color, Sensor Pin
P1, IAC A LOW, Blue/Red, B
R1, IAC B LOW, Blue/Black, D
P2, IAC A HI, Yellow/Red, A
R2, IAC B HI, Yellow/Black, C

Craig
 

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TPS is Black to Black, Orange to Red and Green to White.
 

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where can i find a pigtail for the IAC?
What are you trying to mate? I can supply you with whatever you need. Send me a picture of your current connector.
 

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Discussion Starter · #9 ·
What are you trying to mate? I can supply you with whatever you need. Send me a picture of your current connector.
will get pics later, car isnt where i am.:D

its a used BS3, and the last owner put a small in-line 4 connector on it. system was on a BMW. so i am unsure of the origin.

i called PT&E, they sent me the ford to GM IAC adapter and GM IAC, with a weatherpack style connector. in a 4 square set up. i just really need the connector. i can put the pins in it. . went to local autoparts looking for it, nothing found
 

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Anthony, sorry about the delay, I have been out of town. Send me an email with your shipping address.
 
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