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1998 BMW 540i 4.4L Poor Idle Quality, Misfire, MIL Lamp on
Posted to European Driveability on 1/23/2003 9 Replies

Hello, this 540 loses injector pulse on the number 7 cylinder, it only happens if you drive the car very aggresivley. If you turn the ignition off and then back on again the car runs normal untill it is driven aggresivley again. I think I have a bad ECU but it...

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  Related Documents & Media  1998 BMW 540i

 
Message Closed w/FIX

car Vehicle Data

1998 BMW 540i

VIN WBADE6328W
Engine4.4 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / MOTRONIC 5.2
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursOn Accel

Trouble Codes

156injector circuit cylinder 7 malfunction
Message Closed w/FIX

car Vehicle Data

1998 BMW 540i

VIN WBADE6328W
Engine4.4 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI / MOTRONIC 5.2
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursOn Accel

Trouble Codes

156injector circuit cylinder 7 malfunction