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Throttle actuator pinout
Posted: Mon Dec 15, 2025 4:10 pm
by Corrado613
Hello, i am coming here from the s2 forum with a specific question. I am swapping a d2 s8 engine into a 91 coupe quattro. I have what i BELIEVE is the correct throttle actuator. However the wiring diagrams i downloaded from erwin do not seem to correlate. Does anyone here have the pinouts for this actuator?
Thanks
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Re: Throttle actuator pinout
Posted: Mon Dec 15, 2025 8:51 pm
by MikkiJayne
Welcome
The facelift engine wiring diagram is here:
https://d2doctor.co.uk/files/2000_A8_S8_engine.pdf
The pedal sensor is on P7.
Re: Throttle actuator pinout
Posted: Mon Dec 15, 2025 11:58 pm
by Corrado613
Mikkijayne, that's a name i haven't read in about 15 years lol... (corrados and the s2/coupes?)
That diagram is the same as i have, and it doesn't match the wire colours on the actuator.
That is unless what you're saying is the pins referenced in the diagram are those of the connector and i am to ignore the wires between the body and connector?
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Re: Throttle actuator pinout
Posted: Wed Dec 17, 2025 7:59 pm
by MikkiJayne
Mmm sadly I haven't had a Corrado in probably about that long. My red 16V just rotted away and was beyond saving a second time
I believe the pins on the diagram are the pins on the connector, since it doesn't show any intermediate connections until T10 which is way over in the ECU box. But, I have a couple of body harnesses so I can check the colours on the car side at the weekend and make sure they correlate.
Re: Throttle actuator pinout
Posted: Wed Dec 17, 2025 10:57 pm
by Corrado613
That would be fantastic thanks!
I had my corrado for 14 years, sold it whrn i started havin kids. Funny thing is i don't miss it at all???
Re: Throttle actuator pinout
Posted: Thu Dec 18, 2025 7:50 pm
by MikkiJayne
Yeah I'm with you on not missing it. It was fab to look at, but working on it every weekend got very old, very fast. I miss my mk2 a lot more - that was as much fun, and just worked,