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Post the car's year and whether or not it's a turbo... 700

uid 18083's pic
posted by  lucid on  Wed Mar 26 01:26 CST 2008
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

FI and Ignition systems vary with year and model. Not knowing the specifics makes it hard to focus on what is relevant, and rule out things that may not apply.

The basic diagnosis must first determine which system is failing—Ignition or Fuel, because Ignition failure will automatically prevent normal Fuel system operation. "Normal" here meaning cranking and running conditions—not the Key On "prime".

"...I can hear the relay clicking and the fuel pump engaging when I first turn the key, but it will not start." That example, while not relevant to normal Fuel operation, does at least mean that the pumps will run if the Fuel relay is energized (under that special condition).

Also, "...checked out the radio suppression relay (which looked fine)." leaves the RSR still a suspect because looking fine is not conclusive, and the RSR may affect Fuel or both Fuel and Ignition, depending on year & model.



--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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