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996 2001 Turbo Wiring Check

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Car was running fine and had just come out of the shop after having engine out to weld coolant tubes, replace all seat and coolant lines, replace the coolant reservoir, new water pump, fuel filter etc. The only thing that could be called misbehaving was that I could not reset the airbag light ( durametric) and neither could the shop that did the work and they were using the Porsche tool. Regardless, it ran fine for a few months and then I hit a bump (literally). Now the engine will not idle but pulls hard and behaves over 1800 rpm. First thing I did was try to use the durametric to pull codes but it will not read the  dme module. Reads and interacts will all the others. Not too sure what not reading the DME points to but I suspect its a big clue. Any ideas where to start with this ?  I have been thinking to check the inputs to the DME looking for something amiss but although I have the wiring diagram I do not have a pinout check, I.e. what pins are a continuity check, resistance check etc. The last resort is to take it to the shop but it would be fun to figure this one out.

Edited by killerbee

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