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IMO, it's NOT the Crank Position Sensor 200 1993

uid 18083's pic
posted by  lucid on  Thu May 18 01:19 CST 2006
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

"Seems that my problem is the crank sensor."

Not if you are correct about: "I also checked the fuel relay and both coils clicks and activate the fuel pump."

For the Fuel relay to work, the FI ECU has to get timing pulses from the Ignition ECU.
And the Ignition CU will NOT "trigger" the FI ECU without pulses from the Crank Sensor.

I tried to explain this in my response above, where I said, "Working pumps would verify that the crank sensor is pulsing the Ignition CU, which in turn is pulsing the Fuel ECU. (FI is dead if no signals from Ignition.)"
Please take time to read that response (it took me some time to write it).

IMO, the most likely cause for Fuel with no Spark IS that "power stage thingy".
Just because it gets hot doesn't mean it's good. It may even mean it's bad—I don't have one here to compare to.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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