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1998 BMW 528i 2.8L Poor Idle Quality, MIL Lamp on
Posted to European Driveability on 6/30/2007 12 Replies

Just got this one in and has a check engine on. pulled the codes and all are emission related and idle speed control. Not sure where to start on this one. Could it be idle control valve. it idles actually ok, not that bad but what should i do and where to look...

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car Vehicle Data

1998 BMW 528i

VIN WBADM6332B
Engine2.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P1421Cold Start Control
P1423Fuel Tank Large Leak
P1522Brake Booster (Master Power) Vacuum Sensor Low Voltage
Message Closed

car Vehicle Data

1998 BMW 528i

VIN WBADM6332B
Engine2.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P1421Cold Start Control
P1423Fuel Tank Large Leak
P1522Brake Booster (Master Power) Vacuum Sensor Low Voltage