Author Topic: idle riding high and wont come down.. (Read 17519 times)

roundel318 · « **Reply #60 on:** December 31, 2008, 12:29:18 PM »

Do you have the ability to perform continuity tests on circuits down in the engine bay?

nofear3544 · « **Reply #61 on:** December 31, 2008, 03:11:02 PM »

haha i have no idea what that even means. im guess u mean checking the circuitry for shorts? im not sure how to do any of that and if i did i wouldnt know what to look for.

roundel318 · « **Reply #62 on:** January 02, 2009, 10:13:58 PM »

If you have the E30 factory wiring documentation for the 318 you have, it will have a section twards the front on the required tools, teaching you how to test, and what each test means.
Yes this bassicly means testing the quality of the connection, shorts, etc.
The O2 sensor wiring, among other things is what we would want to initally test.

nofear3544 · « **Reply #63 on:** January 08, 2009, 12:14:25 PM »

So im not gonna jinx myself just yet but i think i may have fixed my problem and it turns out to be a combo of a faulty ecu and fuel pressure regulator. i drove 250 miles and to my surprise i havent had any codes popping up. i also tried swapping in the old ecu with a performance chip to see what happens and the code came right on. i think im gonna leave everything stock for a while.

roundel318 · « **Reply #64 on:** January 08, 2009, 04:32:16 PM »

Excellent you are making progress!
Where is your FPR located physically?
I know many other are having idle related issues (somewhat different and perhaps different causes too) and any additional information is great!
The reason I ask about the FPR location is I do not know off the top of my head its location and this being interelated to a component attached to the chassis and not something on the engine itself.
As others have performed engine swaps as test (ACSchnitzer318 to name one)
and have found items other than components on the engine itself could be to blame as well.

Keep us up to date!

nofear3544 · « **Reply #65 on:** January 08, 2009, 06:16:37 PM »

its located right under the intake manifold in the front of the engine. (you can see it clearly without taking anything apart. its connected to the end of the fuel rail. http://www.realoem.com/bmw/showparts.do?model=AF93&mospid=47305&btnr=13_0308&hg=13&fg=15 number 6

roundel318 · « **Reply #66 on:** January 09, 2009, 09:24:05 AM »

Cool, I figured that was the one, I could not remember if there was another somewhere inline / tank area.

Pitch-Black · « **Reply #67 on:** May 24, 2009, 05:04:16 PM »

any updates on this?

Is your car running normally?