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Old 09-27-2009, 10:31 PM   #5
tkeenan

Name: tkeenan
Title: United Newb
Status: Offline
Join Date: Jun 2009
Location: stl
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Your Ride: 1988 325is
So then, if the light doesn't go out (far left check engine light) it would likely be the crank sensor, right?

I don't want to hijack this guy's thread, but I have the same issue after replacing a lot of things. (and the same car but off one year)
The crank sensor, however, checks out for proper voltage. The plugs have spark, the pressure regulator is new (the other one spit gas up through the vacuum), the air hoses are new and checked over, there is good voltage in the fuel injector sensors (and they are freshly cleaned) - yet it still cranks like this guy's car without ignition.
I also replaced the belts but that shouldn't be an issue as the cranking sounds really clean.

The fuel pump only activates when I hot-wire it, but even while hot-wiring it, I was unable to get the car to start.

I also, cannot activate codes by depressing the accelerator. Yet the throttle sensor still checks out with good voltage, which I intitally suspected in being the problem behind not getting codes.

Before I went about all this work, the car also started and ran, albeit really really rough.

To summarize:
1. cranks but won't start.
2. Fuel pump works but won't activate unless hot-wired.
3. Cannot pull codes.

Anybody have any suggestions before I turn this over to the shop?

Last edited by tkeenan; 09-27-2009 at 10:52 PM..
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