check engine light driving me crazy

bobbyz · 08-05-2009, 08:22 AM

My Brothers check engine light comes on with no other problems. Car runs perfect with the light on. He has taken it in two times already. First time they replaced the "passanger side air valve" and second time just a reset. Each time the light returned within a week. He is getting a bit fed up and was wondering if anyone else has corrected this problem. I know there is a problem with some idle control valves, but this is usually associated with reduced power which he does not have. Any ideas before he goes in for the third time?

akh23456 · 08-05-2009, 08:29 AM

i would assume some kind of faulty sensor on passenger side....if it was idle valve he know it would be that.

pmeloche · 08-05-2009, 11:40 AM

Have the battery checked for low amperage. If the amperage is too low the electrical system starts shutting down systems to make sure the engine will run fine. The "check engine" light will be triggered when that happens.

Do you use the car a lot?

Cheers.

bobbyz · 08-05-2009, 12:18 PM

Yah..we both use our M3's as daily drivers. I have not had any problems with mine. I guess it just gets annoying...like at what point do they call a master tech in to look at it? or at least make a call to BMW NA or Germany.

Ca$hOnly · 08-05-2009, 12:35 PM

I had the same problem with my C63. I lemoned it eventually. Check your local lemon laws. If you have to take it in a couple more times for the same problem you will have a case.

08-05-2009, 08:22 AM	#1
bobbyz First Lieutenant 13 Rep 311 Posts Drives: E90 M3 Join Date: Aug 2006 Location: Canada iTrader: (0)	check engine light driving me crazy My Brothers check engine light comes on with no other problems. Car runs perfect with the light on. He has taken it in two times already. First time they replaced the "passanger side air valve" and second time just a reset. Each time the light returned within a week. He is getting a bit fed up and was wondering if anyone else has corrected this problem. I know there is a problem with some idle control valves, but this is usually associated with reduced power which he does not have. Any ideas before he goes in for the third time?
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08-05-2009, 08:29 AM	#2
akh23456 All I do is Win... Eat Race Sleep 152 Rep 2,184 Posts Drives: 2018 Range 2011 M3 2019 600lt Join Date: Mar 2009 Location: South Jersey iTrader: (2) Garage List 2019 McLaren 600 LT [0.00] 2011 e90 M3 [0.00] 2018 Range Rover Au ... [0.00]	i would assume some kind of faulty sensor on passenger side....if it was idle valve he know it would be that. __________________ Rs7 : 10.4 133.50 with a 1.7 60ft Toyo R888 F10 M5: 11.308 131.96 with a 1.9 60ft Street Tires E90 M3: 11.2 126.7 with a 1.8 60ft Street Tires
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08-05-2009, 11:40 AM	#3
pmeloche Lieutenant Colonel 24 Rep 1,604 Posts Drives: 2013 F25 X3 xDrive35i Join Date: Feb 2008 Location: Montréal, Canada iTrader: (0)	Have the battery checked for low amperage. If the amperage is too low the electrical system starts shutting down systems to make sure the engine will run fine. The "check engine" light will be triggered when that happens. Do you use the car a lot? Cheers. __________________ Patrice 2013 F25 X3 xDrive35i Vermillion Red
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08-05-2009, 12:18 PM	#4
bobbyz First Lieutenant 13 Rep 311 Posts Drives: E90 M3 Join Date: Aug 2006 Location: Canada iTrader: (0)	Yah..we both use our M3's as daily drivers. I have not had any problems with mine. I guess it just gets annoying...like at what point do they call a master tech in to look at it? or at least make a call to BMW NA or Germany.
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08-05-2009, 12:35 PM	#5
Ca$hOnly Major 47 Rep 1,073 Posts Drives: E92 M3 Join Date: Apr 2009 Location: In ur fridge, eatin ur foodz iTrader: (5)	I had the same problem with my C63. I lemoned it eventually. Check your local lemon laws. If you have to take it in a couple more times for the same problem you will have a case. __________________
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