Question about 2001 Volkswagen Beetle
Replaced the tube and the code went away for a few days, about 150 miles of driving. But the code came back and returns after every reset. What can I check next?
The po171 code means the system is running too lean.
Try cleaning the maf sensor (mass air flow) and see if that works.
It can be cleaned with intake cleaner or brake parts cleaner that"s in a spray can.
The maf sensor is located between the air filter and the throttle body in a big black hose and has a wire connection to it. Be very careful when you clean it.
Posted on Jul 13, 2009
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Posted on Jan 02, 2017
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