Quote:
Originally Posted by mikedsilva
Resurrecting an old thread.
Could someone explain, as if to a 6 year old, where the 2 brown wires for the sensor plate switch, connect? ie, where in the engine harness do they go?
(edited
|
Mike,
I will try to explain where the 2 brown wires for the AFS (air flow sensor) switch are connected. Instead of using the driver and passenger sides, we will refer them as 1-2-3 cylinders side and 4-5-6 cylinders side because our driver side is actually your passenger. The engine orientation will be the same for 911 including 914.
So let’s begin..........The electrical plug would only go in one-way because of the guide/groove configuration. There are two (2) terminals @ the AFS plug, @ 1-2-3 side the brown/red and/or brown/black wire goes to terminal #85 at the FPR (fuel pump relay)
socket. The other terminal @ 4-5-6 side with brown wire goes to the alternator @
D-.
The throttle body is isolated from the AFS assembly and the contact or continuity is made between the pin and insulated spring located below the sensor plate. I have not drank my morning coffee yet but my recollection about this subject is pretty much reliable. Hope this helps you in your troubleshooting. The sensor plate is isolated from the throttle body for the switch to work.
When you inadvertently switched the CSV and AFS plugs and continuously start the motor with a fully charged battery, the electrical section near the starter would start to melt during prolonged cranking. If you have an engine test stand, try this experiment and you could smell the burning plastic insulation.......then you would need to order new engine harness from Timmy. I think he knows more (joke)......Dennis, I am just joking.
Tony