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Old 07-10-2014, 10:22 AM
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Join Date: Jun 2014
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190E 16V Fuel Distributor No Start? Help!

Greetings all, first post here! Have been active in the E30 online community, and pleased to find this site after purchasing a 1986 US Spec Cosworth that does not run and has been sitting in a collection for nearly 15 years!

I will be the fourth owner of this car in the past year, none of the previous have been able to get her started.

I'll get right to it:

Car will not start, mixture is far too rich--fuel flow rate at injectors is enormous, about 5cc of fuel per injector, per SECOND whenever fuel pump is running, enough to fill the sump and lower intake plenum in no time when cranking during initial diagnosis. Previous owner has replaced many parts--ignition system, pump, pump relay etc. Car will start after priming pump for a second, then disabling pump and cranking (until all fuel is burned off in combustion chamber).

I have read quite a bit about the KE-jetronic system, and am relatively sure that the issue is a faulty fuel distributor that is not regulating fuel flow, but instead simply sending full volume/pressure to the injectors from the FPR.

Before I she'll out $500 for a rebuilt fuel distributor from German Star, I want to be absolutely certain that is is the problem. Could it be bad fuel injectors that are worn out and are allowing too much flow? Could it be a bad FPR that is producing too great of pressure to system after it, causing too much flow? Both of these parts are significantly cheaper than the distributor, so would hate to have them be the problem after dropping big $$$ on a rebuilt distributor.

I suspect that it is indeed the distributor, as fuel reaches the injectors whenever the pump is on (confirmed this by jumping pump at relay plug).

Many thanks in advance, and looking forward to contributing as I get this Cossie back on track (literally)!
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