Engine Controls - DTC P0171/Spark Knock
SOURCE: Mitsubishi Tech Talk Article April 2004TITLE: DTC P0171 / SPARK KNOCK
APPLIES TO: 2004 Endeavor
SERVICE TIP:
If you encounter a vehicle with spark knock, engine pinging, and/or MFI DTC P0171, refer to TSB-04-13-004 for PCM reprogramming information.