P0171 Crankcase vent valve problem help ASAP

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Replaced the crankcase vent valve with OEM parts and light still hasnt turned off. I need help ASAP ive lost a lot of MPG and a lot of power!!!

Skiaddictpc98 in Park City UT

Oct 31, 2016

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What are the best Audi repair shops?

RepairPal Certified shops can diagnose and repair your 2007 Audi A4 Quattro. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

P0171 Crankcase vent valve problem help ASAP

What is your question?

Replaced the crankcase vent valve with OEM parts and light still hasnt turned off. I need help ASAP ive lost a lot of MPG and a lot of power!!!

Skiaddictpc98 in Park City UT

Oct 31, 2016

1 Reply

Popular Answer

casey40510on Oct 31, 2016

Hey Skiaddictpc98, If you have the turbo model, usually the P0171 code lets you know you have air leaks. The entire engine and turbocharging system needs to be leak tested. If there are no leaks, it is time to look at the MAF sensor.

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Popular Answer

What are the best Audi repair shops?

RepairPal Certified shops can diagnose and repair your 2007 Audi A4 Quattro. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.