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View Full Version : e38 standalone, no power to MAP,ECT and alll 5volts form gray connector



miguelc
July 20th, 2011, 02:11 AM
greetings

How do I diagnose a faulty ECM? It seems that every sensor hooked up to the gray connector doesnt have a 5v supply, also tps reads 100... could you help me, my boss doesnt want to buy a new ECM for testing.
thanks