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Have done all I know and still have the elusive problem!! IT's Cliff time!!!

posted by  jdwhiting on  Mon Jun 7 17:02 CST 2004
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last visit: Thu Apr 16 03:28 CST 2009
[RELATED]

240DL 1990. Replaced both fuel pumps and flitter, fuel pressure regulator, Fuel relay, control module for injectors, ECU#951, Crank sensor(white Banded now)
and still after driving it and getting it up to temp it will bog down as I throttle up and hesitate while in the limp mode and finally stall out.

I have been keeping an eye on the diagnostic codes as each time this happens. Tonight I got a 121 and a 214 code. The 121 says that I have lost the air mass meter signal and the ignition diag. code again says I have a speed sensor signal missing or sender faulty. What is the speed sensor? (Crank Sensor)?? alreay replaced.

When it says I have lost the signal does that mean I have a bad part or does it mean I have a wire problem? Also how do I test the air mass meter..

The other thing I have been noticing is how hot the engine seems to be getting just after it looses power and bogs until stalling. The gauge shows a placement right between hot and cold but I am wondering if that is a faulty reading from a bad temp sender.

I know am getting close to fixing this so could you help me out with more thoughts please?

thanks
Judd






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