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DME relay location

I'm new to the Porsche world. I am working on a 85 911 turbo. I am experiancing a crank no start condition. The fuel pump does not turn on. Everything i am seeing on line points to a possible DME relay falure. I can"t seem to locate to relay. This is a gray market car so I'm wondering if anyone could tell me if it has a DME relay to begin with a where it is located if it does.

Old 05-24-2016, 08:11 AM
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FP relays (2) are on the front fuse board. Usually red, rearmost positions. FP fuse is #6. There's also an overboost relay on the rear electric panel, yellow, that keeps the pumps from running wnen the overboost switch goes open circuit from too much boost, bad switch or the wire fell off. That relay can suffer cracked solder joints also.
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Last edited by john walker's workshop; 05-24-2016 at 08:28 AM..
Old 05-24-2016, 08:23 AM
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Quote:
Originally Posted by john walker's workshop View Post
FP relays (2) are on the front fuse board. Usually red, rearmost positions. FP fuse is #6. There's also an overboost relay on the rear electric panel, yellow, that keeps the pumps from running wnen the overboost switch goes open circuit from too much boost, bad switch or the wire fell off. That relay can suffer cracked solder joints also.
Another fairly common FP failure is the weakening of the clips that hold the FP fuse in place. Good idea to inspect the fuse for snug fit.
Old 05-24-2016, 12:28 PM
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The DME relay on a 3.2 is under the driver's seat.
Slide seat to front and back to access the bolt and harness clip.
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Old 05-24-2016, 03:23 PM
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it's a 930. No DME.
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Old 05-24-2016, 03:54 PM
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installing DME relay

Quote:
Originally Posted by sugarwood View Post
The DME relay on a 3.2 is under the driver's seat.
Slide seat to front and back to access the bolt and harness clip.
Does one have to unscrew a bolt that goes through the tab or is it just pull out and plugin?
Old 10-07-2021, 01:03 PM
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Originally Posted by pruiz View Post
Does one have to unscrew a bolt that goes through the tab or is it just pull out and plugin?
Best to Unscrew the bolt that holds down the tab --

Old 10-07-2021, 01:27 PM
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