ECU Engine Management Problem - BMW Forum

b4sha · 10-21-2009, 06:33 AM

Hi All,
I have this problems with my BMW 318 CI 2002 Coupe, the engine management light it on!! I've had the car read by a computer when says its a faulty Lamda Sensor!! I believe this car has about 5 of them?? both garges have refused to fix the car as they are unable to locate which one is faulty and said to take it to bmw!!
Well, i decided to try one more garage and they said it was a fault with the air flow system which triggers the car to say its a fault with the lamda sensor?? Well i paid £100 to get this done and about 10 minutes away from the garage the engine light came back on!! So i went back to this place and it was close!! (close on saturday at 12). But now this garage has been closed since and unable to get hold of the garage owner. I know, i should not have gone to this garage and its an expensive mistake and have been ripped off. I don't want to go to bmw because it would cost me too much and can't afford it. I'm a student and before you say anything, i know we don't have much money and should not be driving bmw's !!!
All your help and support would be great.
thanks in advance guys!!!

FCPGroton · 10-21-2009, 03:04 PM

Normally, it will tell you which o2 sensor is bad. Either the front or the back on. Maybe just have BMW tell you which one it is and then replace it yourself.

camano4 · 10-30-2009, 09:16 PM

Good luck ~ don't know if you are 'State side' or not... there have been programming upgrades (I have an '05 325i) to correct random SES and codes ~ mine has been throwing 'O2 Sensors Reversed' and 'Secondary Air System' codes. Paid the dealership some good coin to correct the problem ~ it lasted a month. The car runs like a dream, great power and economy, so I bought a code retrieval and eraser tool... I will get to the bottom of this though...