p0171 - Engine ODB2 Fault Codes


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Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes

bigl
User

Jun 12, 2009, 12:44 PM

Post #1 of 3 (2977 views)

p0171	Sign In

Trying to help a family friend, he has a 2003 GTI and has a P0171 error code, any help with regards to a plan of action would be helpful and appreciated, thanks.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 12, 2009, 1:16 PM

Post #2 of 3 (2972 views)

Re: p0171	Sign In

That code means the system is running too lean and the computer has compensated all that it can. Look for vacuum or intake air leaks first. If nothing found, it can be a problem with the Mass Air flow sensor. Sometimes cleaning the sensor wire with electrical cleaner spray will work.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

bigl
User

Jun 12, 2009, 3:21 PM

Post #3 of 3 (2968 views)

Re: p0171	Sign In

Thanks for the speedy reply. Have a good weekend.
Larry

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