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GH85Carrera GH85Carrera is online now
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GH85Carrera's Avatar
Join Date: Nov 2007
Location: Oklahoma
Posts: 46,834
As everyone says, the DME relay is the first thing to swap. You should always carry a spare. Do not buy a cheap Uro relay. Get a German one or better yet the solid state one made by a fellow Pelican. If that solves it, great. If not the flywheel sensors are next to check. Call a local PCA friend with a Carrera and put your DME in his car and see it it runs. If not the DME itself has issues. Don't put his DME in your car. There are conditions that your car can damage a good DME. Put your DME in his car.

If you don't know how old the sensors are or if you suspect they are original, replace them anyway.

Good luck.
41 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!

Last edited by GH85Carrera; 02-28-2017 at 06:40 AM..
Old 02-28-2017, 06:33 AM
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