2004 BMW 330ci Repair Question
Topics covered: Rough idle, Spark, Spark plugs.
Mileage: 100,000 miles.
Mileage: 100,000 miles.
Asked on December 26, 2010
2 trouble codes
I have a 2004 BMW 330i car with 2 trouble codes: P0171 & P0172 = Bank 1 & 2 too lean.
What does this mean? How would it be repaired?
I thought it might be related to spark plugs because of a slight rough idle so I did an oil/filter change and replaced the spark plugs but rough idle still continues.
What does this mean? How would it be repaired?
I thought it might be related to spark plugs because of a slight rough idle so I did an oil/filter change and replaced the spark plugs but rough idle still continues.
Asked by rudy9042Answer
Replied on January 10, 2011
Inspect the intake boot from the air mass sensor to the throttle body, the boot often gets old and it can have tears in it, go to Realoem.com and look for part number 13541438759
