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In Reply to: Oh, that changes things... posted by Ryan325e on July 16, 2001 at 09:58:46:
The dead tach adds a possibility. There is a sensor either at the rear or front depending on the motor that tells the ECM where the crank is and this might have something to do with the Tach also. I am not certain about the tach thing but I ahve been told that the ECM will not allow the engine to start without a reading from this sensor. I am at work and away from my manual so I cannot confirm this right now.
I take it that is different from a crank sensor? I have been told that if the crank sensor is bad the motor shouldn't start hot or cold, not just hot. By the this is an '86 325 with the straight 6 in it. I spoke with mechanic today who said he is shipping my old ecm back with an extra unit to test the car with. I have a sneaking idea I will still have the same problem and I am going to put a breaker bar through the windshield :) Should I go and get the bentley manual, is there where you get your information. Thanks for keeping me posted so quickly. When talking with these garages in the area it seems that I know more, and where to look than they do. I spent three hundred bucks a couple of weeks ago at the shop and came home with the same problem.
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