Quote:
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Originally Posted by Mackskibum
Is SES flashing? Do you have any hard data from the ECM or just a code?
Could be a bunch of things:
MAF
fuel pump
bad gas
clogged injector
vacuum leak
bad o2
etc.
BTW, check the vacuum hoses at the rear of the engine. Did the shop fool with anything else under hood while you were getting the codes scanned?
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the SES was not flashing. I used Actron CP9135 to read the codes, and it only gave those two numbers. I earsed them immediately after I wrote them down.
yesterday the weather was cold, about 35F degree , so I guess that is why the car has problem on starting. I think even I did not earse the codes, the rough/low idle speed problem would still happen.
anyway, yesterday I drove the car for about 10 minutes local road, and then tried to restarted it . The rough idle speed no longer occured, at least not noticable. I guess the cold weather caused the idle speed problem. I know the problem is still there, but I think I can drive the car for several days until the error codes show up again. Then I will bring my x5 to stealer.
I appreciate you guys inputs. I DIY some on my previous maxima. I own this 03 X5 for about 6 months, current meter reads 52k miles. I'd better let the stealer fix the problem this time.
Hey, Mike ( Noncom23), glad to see u here, which stealer you think is better, Classic BMW or BMW of Dallas?