Having problems with your 2002 Pontiac Sunfire ?

P0171 codes car will not start

Posted / edited by AnonymousUser on : 18-06-2018

Answers :

Code 171 means the O2 sensor data showed the fuel mixture was too lean when the engine was running. The code will not keep the engine from starting.
The actual cause may be a failed fuel pump or filter.
Repair Help & Product Troubleshooting for 2002 Pontiac Sunfire

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