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-   -   Name of switch (http://forums.pelicanparts.com/porsche-911-technical-forum/1115868-name-switch.html)

hughc 03-31-2022 05:05 AM

Name of switch
 
Can someone tell me the name of the blue switch in the area of the air flow plate on the back side of engine. I can't seem to find any reference to it in the Bentley
Thx

MBAtarga 03-31-2022 05:29 AM

Which make/model of car? I assume Porsche?

boyt911sc 03-31-2022 05:45 AM

Air Flow Sensor Plate Switch........
 
Quote:

Originally Posted by hughc (Post 11651885)
Can someone tell me the name of the blue switch in the area of the air flow plate on the back side of engine. I can't seem to find any reference to it in the Bentley
Thx


Hugh,

That is the AFS switch that supplies ground contacts for the terminal #85 @ FP relay socket and @ alternator D-. To get a better understanding how this switch works, use a continuity tester @ terminal #85 (FP relay) and a good ground contact. Raise the sensor plate and you will have an open line.

Tony

hughc 03-31-2022 06:41 AM

Quote:

Originally Posted by MBAtarga (Post 11651916)
Which make/model of car? I assume Porsche?

Sorry MBAtarga, I should have been a little more precise with that question.

hughc 03-31-2022 06:48 AM

Quote:

Originally Posted by boyt911sc (Post 11651931)
Hugh,

That is the AFS switch that supplies ground contacts for the terminal #85 @ FP relay socket and @ alternator D-. To get a better understanding how this switch works, use a continuity tester @ terminal #85 (FP relay) and a good ground contact. Raise the sensor plate and you will have an open line.

Tony

Thank you Tony, I'm in the process of putting things back together on the engine and was unsure of the placement of the various black connectors in that area so by knowing the ID I can refer to the wiring diagram and confirm the color codes on each connector.

If there is a "next time" I'll be sure to identify each connector as I remove it.

boyt911sc 03-31-2022 07:23 AM

Wire color...........
 
Hugh,

Just make sure that the plug that goes to the AFS connector has 2 brown wires. The standard color for the plug is aqua blue. This particular plug for the AFS is the only plug in the engine harness that has 2 brown wires (no power source). Due to its proximity to CSV and AAR plugs people inadvertently mixed them up.

Tony

hughc 03-31-2022 11:55 AM

Quote:

Originally Posted by boyt911sc (Post 11652056)
Hugh,

Just make sure that the plug that goes to the AFS connector has 2 brown wires. The standard color for the plug is aqua blue. This particular plug for the AFS is the only plug in the engine harness that has 2 brown wires (no power source). Due to its proximity to CSV and AAR plugs people inadvertently mixed them up.

Tony

Thank you Tony, I got it all sorted.
I have one more question. There is a long wire with a female spade connector that is either bluish or greenish that I don't remember where it plugs into.
Can you help?
Thx

boyt911sc 03-31-2022 12:40 PM

Quote:

Originally Posted by hughc (Post 11652365)
Thank you Tony, I got it all sorted.
I have one more question. There is a long wire with a female spade connector that is either bluish or greenish that I don't remember where it plugs into.
Can you help?
Thx

Hugh,

Could you post a picture of the wire in question? Thanks.

Tony

hughc 03-31-2022 02:48 PM

Quote:

Originally Posted by boyt911sc (Post 11652423)
Hugh,

Could you post a picture of the wire in question? Thanks.

Tony

I haven't mastered posting pics on the forum but I did send you a photo via email.
thx

hughc 04-01-2022 08:53 AM

Quote:

Originally Posted by hughc (Post 11652538)
I haven't mastered posting pics on the forum but I did send you a photo via email.
thx


I think I found out where it belongs. It's a blu/wht wire and goes to the front of engine to the oil temp. switch.
Thx


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