Mechanics

CHEVROLET MONTE CARLO VACUUM LEAK PROBLEM

2001 Chevrolet Monte Carlo • 200,000 miles

My check engine light on so I scanned it. Code p0171 Bank 1 system too lean what does that mean
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Guest
January 10, 2013.



Most likely a vacuum leak I would check for a vacuum leak first.

Saturntech9
Jan 10, 2013.