DTC Parameters

• 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).
• MAP sensor signal voltage is less than 0.95 volt.
• Short Term Fuel Trim (STFT) is -7.7-7.7 percent at idle and -24-24 percent at cruise and accel.

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