Volvo RWD 200 Forum

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84 fuel pump working only when short-circuited at relay 200

posted by  someone claiming to be Mike on  Fri Aug 1 09:03 CST 2003 [RELATED]

My 84 240 has a new main fuel pump and working in-tank pump. I disconnected fuel line at the rail and watch gas pour into bottle (and hear main pump working) when I short across the relay between the large red and yellow-red wires. When I crank over the engine (having removed the short-circuit from relay) there is no gas, no pumping from the main pump. I replaced both relays. Somewhere between the ignition and relay must be a problem.








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Two posts on the same problem, same car??? (nmi) 200

uid 18083's pic
posted by  lucid on  Fri Aug 1 13:49 CST 2003
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last visit: Fri Oct 24 12:31 CST 2014
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84 fuel pump working only when short-circuited at relay 200

posted by  yrots on  Fri Aug 1 13:25 CST 2003
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last visit: Sat Apr 12 11:19 CST 2014
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Test for spark by pulling coil wire at distributor and positioning it so you can see if spark while cranking. IF no spark and no fuel pump you may have problem with Hall sensor in distributor. I believe the '84 is similar to my '86 which had similar problem recently. Others will correct me if I'm wrong. If neither spark or pumps while cranking check electrical connections to the hall sensor and ignition unit behind passenger headlight.

Dirk
'86 240 186k+







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