March 11, 2009 05:54AM
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Registered: 15 years ago
Posts: 13 |
March 11, 2009 06:49AM
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Registered: 15 years ago
Posts: 797 : Ottawa |
Here is a good article explaining everything you need to know about the airflow meter, including how to check the resistance.
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March 11, 2009 08:48AM
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Registered: 15 years ago
Posts: 1,538 |
It sounds like your throttle position sensor needs to be checked for proper adjustment. |
March 11, 2009 08:25PM
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Registered: 15 years ago
Posts: 1,869 : Amagansett, New York |
The TPS is what I was thinking too |
March 11, 2009 10:22PM
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Registered: 15 years ago
Posts: 1,538 |
It's probably opening just a tiny bit late and confusing the ECU. |
March 13, 2009 05:31AM
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Registered: 15 years ago
Posts: 13 |
Thanks dear friends.
Following introduction of article "airflow meter" I measured voltage of Air flow meter, I think its OK. With multi-meter I checked open/close switch of Throttle position switch, its OK. "Click " is good adjusted (This is my second 325i). Do you have some more idea? I start to think that Air flow meter give too lean mixture, but I don't have equipment to test. I also tried adjusting the base idle speed and mixture by unplug the TPS connector and short all three pins together, but not successful. (http://www.rickk.net/i/drive/bmw-e30-325i-motronic-10-information/) Sorry to make you headache. Thanks. Chan. |
March 13, 2009 09:16AM
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Registered: 15 years ago
Posts: 1,538 |
I just reread your original post...if you do have a 1998 car it's not an E30 and none of the advice here will apply, nor will the bad info in that link. Even if you car is a 1989 E30, that link won't help since your car would have the Motronic 1.3 ECU. So which is your car; a 1989 325i or a 1998 model? |
March 13, 2009 03:29PM
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Registered: 15 years ago
Posts: 13 |
March 26, 2009 11:14PM
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Registered: 15 years ago
Posts: 13 |
March 27, 2009 08:54AM
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Registered: 15 years ago
Posts: 255 : Heber City, Utah |
I have not done this myself, but I have read that you can check for air intake leaks by spraying starting fluid around all the usual suspected sources with the car running and if the idle surges then you have found your leak. If all your rubber hoses are good then you might want to check the valve cover for leaks and even the oil dipstick o-rings and filler cap too!
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