diagnostics codes PO 0303 and PO 0171 advanced troubling shooting
What is your question?
Forester suddenly began running rough and stalling and the Check Engine light was flashing. I used an OBD diag checker which resulted in the above diag codes. I know what they are but don't know what to do next regarding which components to troubleshoot. What do you think?
What makes this problem better or worse?
accelerating
How long has your 2002 Subaru Forester had this problem?
a few hours
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Mar 31, 2019
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