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240 no start. 200 1991

uid 18083's pic
posted by  lucid on  Wed Mar 9 08:30 CST 2005
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

"...but after I stick the pin in the socket and wait >1 <3 secs. I just don't get a message"

I think you misread the OBD instructions. You're supposed to push the button (not "wait") for >1 <3 secs.

Fuse 6 is the Main FI fuse. As long as the engine continues to run after jumpering from fuse 2,then fuse 6 is OK. I suspect it was more the physical contact at the fuse terminals that got it running, rather than the supplied voltage.

I would clean or replace fuse 6, scrape the fuse holder terminals clean, and squeeze them closer together for a more positive connection.

The RPM sensor is a good suspect, but I see no correlation to the fuse jumpering, if you are positive that's what works.

I don't think the alternator could be a no-start factor, as it supplies no power until after the engine starts.
--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.






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