2001 BMW 330 Repair Question
Topics covered: Sensor, Check engine light, Engine.
Mileage: 157 miles.
Mileage: 157 miles.
Asked on December 29, 2010
Engine operation
2001 330I with 157000 miles. Rough idle but runs smooth under power, check engine light shows P0174 (System too lean bank 2). Recent work, new spark plugs and new Mass Air Flow Sensor ( which corrected these codes P0300, P01345, P0171, P1349, P1347, & P0128. Any suggestions?
Asked by Ronald Van LiewAnswer
Replied on December 29, 2010
The thing I would recommend is to seek out someone with the proprietary BMW scan tool called a GT-1 so that live data can be viewed. Otherwise I would need to just list things that it could be, and that could be very expensive. Also, has the pre-cat oxygen sensor been inspected/changed?
Replied on January 10, 2011
The pre-cat oxygen sensors, plural. There are 2 of them pre-cat.