Code Enable Criteria

• Ratio of TP sensor No. 1 to TP sensor No. 2 is less than 0.5 (TP angle less than 30 percent).
• TP sensor No. 1 and TP sensor No. 2 signal deviation is less than 0.6 percent (TP sensor signals correlate with each other).
• Engine has been running for more than 0.3 second.
• Ignition voltage is more than 11 volts.
• Short Term Fuel Trim (STFT) is -7.7-7.7 percent at idle and -24-21 percent at medium and high engine load.
• No TP DTCs are set.

DTC sets when MAF sensor airflow value is too far out of agreement from ECM calculated airflow value (based on engine speed and TP sensor).