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Hot Stall today ... ECU? 200 1991

posted by  NewMexico240 on  Mon Mar 14 19:50 CST 2011
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last visit: Fri Oct 24 11:52 CST 2014
[RELATED]

Art,
I cleaned up the power stage and re-attached with fresh heat sink,
but I guess all the heat sink will not help if the unit is dead.

It will be difficult to determine if it is fuel or spark that is
lacking, because the problem usually fixes quick and I am always
the only adult in the car.

I am not getting a check engine light when this happens.

Car runs fine all year around until the weather starts getting warm/hot.

I will check fuse #6 and replace the ECU and report back, soon if
the problem occurs soon and later if not.

Both my 90 240 and my 91 240 were having hot stalls last summer. Both
in-tank pumps were DOA when tested. I replaced the in-tank pump in both last summer but the problem continued in the 91. Now that I think about
it maybe the fuel pump that I put in the 91 was defective.

I have a few things to test tomorrow.
I should of tested the fuel pumps when she stalled today...sorry.
And the power stage is not something that I would want to buy used.

Thanks
Joseph







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