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Fuel injection difficulties 200 1970

posted by  someone claiming to be Jim Hampton on  Sun Nov 11 10:07 CST 2001 [RELATED]

The engine was recently swapped in a '79 244. The replacement was not turbocharged. The replacement included everything in front of the fire wall, plus the ecu and fuel pump relay. The engine worked well in the car it was taken from. I checked it out.

It doesn't start. If it stands for a few hours it will begin to start, but stops after a few seconds. The wiring seems to check out.

If I bypass the fuel pump relay, the pump works, but the injectors spray full-force, even without operating the starter. If I have someone crank the car with me holding the air sensor plate down, I get the same thing, except the start injector dribbles a little bit of gas.

A Bentley manual for later turbocharged models, which are similar in having cis, indicates that this behavior indicates a stuck plunger in the fuel distributor.

Is that a reasonable diagnosis? It looks like a pain in the neck to remove the fuel distrbutor if I don't have to.

I have never fooled around with fuel injection systems before, and any suggestions anyone can give will be welcome. I think I already know more than I intended to learn, but will reluctantly learn whatever is necessary to solve the problem.

Thanks.

Jim H.





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