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'87 240 dl won't start and i need help please!!! 200 1987

uid 18083's pic
posted by  lucid on  Sat Aug 7 10:15 CST 2004
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

Connect a jumper wire from the Left side of fuse 6 to the Left side of fuse 4.
Both Fuel pumps should run immediately. Try starting the engine.

If it starts, the problem is in the Fuel system (bypassed by jumper). Car can be driven with jumper in place, if necessary.

If it still doesn't start, suspect an ignition problem (Ignition failure will automatically prevent Fuel system operation).


Details —
Fuse 6 (Left contact) contact is a voltage source (6—10 are always hot). Fuse cover labeling for #6 is wrong. It's not connected to anything on the '87 LH FI system.
Fuse 4 Left side goes to Main pump, Right side (thru fuse) to Tank pump.
Jumper wire bypasses 25 amp fuse and Fuel relay. Puts voltage where relay would if all was well.
--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.






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