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YOUR RESEARCH1999 Porsche C4 Wiring
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Use same harnesses
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I think they used the same harnesses for things like manual and automatic transmissions etc.
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Does anyone have a photo or drawing of the wiring harness that identifies where each plug should go? I seem to have some extra plugs and no other connection with my wiring harness.
Bill
I think they used the same harnesses for things like manual and automatic transmissions etc. So there may be (extra) plugs for options that you don�t have�You�ll probably get some answers as to what the extra plugs might actually be for, but not from me me�sorry.
The tagged one is the throttle body and the temp sensor is on the other side of the engine I think.
Thanks for trying. I just need to buy the Bentley manual.
1st pic. The plug to the right might be the engine compartment air temp sensor that mounts to the intake.
2nd pic. The plug with the orange is the extra plug that would go to the tip trans if u have a 6spd. The other plug might be the change over valve. Its part if the vacuum line system. If i get a few minutes ill try to id them in my bentley
Edit pic 2; the 2 wire i think goes to the gas tank regen valve the comes off the air tube from the throttle body
3 wire might be the hall sensor. Red/violet, red/green, brown/pink
Pic 1. I cant see the wire color but if its the air temp sesor ut will be blue/pink and brown/pink
Thanks so much. I will try to find the corresponding plugs that I have not seen. Also, I decided that I need the Bentley manual and so just bought one that will be delivered in a week or so.
That cannot be correct; the 3-pin plug in the foreground is a camshaft position sensor plug.
To help us help you we would need a list of orphaned plugs with the wire colors for each plug.
Regen part would have stayed in the engine bay and since the air temp sensor is mounted on the intake (not on your engine) thet still may go to those items.
On my engine, as far as I remember, all the elctrical connects on the engine, except for the PSE connection which follows the two large bundles of wire to teh passenger side connectors, of course mines a 2003 so likely different, for instance I have a 6MT and there are no extra connections for the tip. Different wiring harness than mine..
Here is a list of the plugs and and wire colors. There is only one socket available and that is on the throttle body. This is a C4 manual transmission 996.
1. 2 wires - red/blue and red/purple
2. 3 wires - red/white and brown and red
3. 2 wires - white/black and blue
4. 4 wires - white/green and yellow/black and red/brown and blue/grey
5. 2 wires - purple and red/blue
"theprf" Hope that this helps you and me. LOL
Bill
