1992 190E Won\'t start when hot.

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1992 190E Won't start when hot.

06-20-2006, 06:27 PM

dwhuntley

Registered User

Join Date: Jun 2006

Posts: 5

1992 190E Won't start when hot.

This is a new car I just bought so I don't have any history. I determined that the fuel pump cuts out after a couple of seconds starting it when hot so it won't start. I jumpered pins 9 and 7 in the fuel pump relay, now it starts and runs fine. Pin 12 is labelled crank rpm and I have no input from that. Is this the crankshaft position sensor? Does that sound like the problem, and how hard is it to change? Is it under the engine? Any help would be appreciated.
Thanks

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