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-   -   Z4 Roadster (E85) Please help all put of ideas!!! (http://www.bimmerfest.com/forums/showthread.php?t=661800)

dgomez89 12-02-2012 04:15 PM

Please help all put of ideas!!!
 
I have a 2003 Z4 2.5. The car will idle fine when first started then Shortly after idling it will fluctuate and all sorts of misfiring when accelerating, mostly at low rpms. I have changed spark plugs. All the coils are good, all fuel injectors are good. Camshaft sensor exhaust and intake are good and the solenoid (for the vanos) seems to be working fine ill less I tested it wrong. I have the fault code p0010 camshaft position actuator bank one. Any advice I am out of ideas

Droptop85 12-02-2012 05:07 PM

Have you replaced the cam sensor? You said it's good but the code is for a faulty cam sensor

dgomez89 12-02-2012 05:09 PM

Why wouldn't the test show that it is bad? That's why I haven't replaced it.

Droptop85 12-02-2012 05:24 PM

What method did you use to test it? Also make sure all connectors are tight and clean. I'm sure you have already. Also. What kind of gas are you running?

dgomez89 12-02-2012 05:30 PM

Always go with premium and used the techron fuel cleaner. Used a multi meter by back probing the signal wire and going over it with a wrench to make sure it is reading correctly

Droptop85 12-02-2012 05:34 PM

Well this is frustrating. Check your fuel psi it almost sounds like low fuel psi.

Droptop85 12-02-2012 05:40 PM

http://www.harborfreight.com/fuel-in...ter-92699.html

And it's on sale! You should be at 5 bar +-.02

dgomez89 12-02-2012 07:27 PM

Why would that P0010 code come up then?

Droptop85 12-02-2012 07:42 PM

Here's what I found regarding code p0010

A code P0010 may mean that one or more of the following has happened:

Faulty oil control valve (OCV)
Open or short in the VVT/VCT circuit
Open or short in the OCV / solenoid valve
Damaged computer (PCM)

Droptop85 12-02-2012 07:43 PM

Since you've performed the tests already my guess is a short in a wire??

RCOBill1 03-21-2013 02:36 PM

Quote:

Originally Posted by dgomez89 (Post 7227087)
I have a 2003 Z4 2.5. The car will idle fine when first started then Shortly after idling it will fluctuate and all sorts of misfiring when accelerating, mostly at low rpms. I have changed spark plugs. All the coils are good, all fuel injectors are good. Camshaft sensor exhaust and intake are good and the solenoid (for the vanos) seems to be working fine ill less I tested it wrong. I have the fault code p0010 camshaft position actuator bank one. Any advice I am out of ideas

Had a problem that sounds close to this, Air Mass Sensor going bad, started with missfire, backfire and went down hill from there what you posted. I also have a tester, 15K dealer test box works alot better, spend the money and see what they find..


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