How to check manifold vaccum leak related to P0171 - too lean bank 1
23 June 2011, 02:53 PM
#2
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usually caused by a leak in the intake system somewhere between the Mass Air Flow sensor and the cylinder intake valves. Look for a vacuum hose that’s become disconnected or a crack in one of the tubes connected to the turbo
take a look at this thread https://www.scoobynet.com/general-te...-2002-sti.html
take a look at this thread https://www.scoobynet.com/general-te...-2002-sti.html
Last edited by jimlad; 23 June 2011 at 03:30 PM.
23 June 2011, 10:10 PM
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What other mode are you running/spec.
What year model etc.
I had that code once and after chafing bits and bobs was related to dv delete and the MAF getting confused so to speak.
What year model etc.
I had that code once and after chafing bits and bobs was related to dv delete and the MAF getting confused so to speak.
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