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Tach bounce Posted by Gene N [Email] ![]() ![]() ![]() In Reply to: Re: Crankshaft position sensor, Al P, Sun, 3 Oct 2004 19:56:25 Members do not see ads below this line. - Help Keep This Site Online - Signup |
On this year, with the separate DI/APC and Jetronic computers, the tach should definitely bounce when you are cranking the car. On the later Trionic systems, I'm not so sure if that is true. The failure when hot and then recovery when cool sounds a whole lot like CPS failure. The sensor itself is a Hall effect sensor and, as noted, resistance readings aren't going to be much of a help. If you want to give the cold water trick a try, spray the water between the main crank pulley and the block. You should be able to see where the sensor wires come out from under the pulley.
posted by 208.20.22...
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