P1129

DTC P1129: MAP Sensor Signal Higher Than Expected

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
2. Check the MAP SENSOR in the DATA LIST with the HDS.

Is 47.2 kPa (13.9 in.Hg, 354 mmHg) or less indicated?

YES - Intermittent failure, system is OK at this time.

NO - Replace the MAP sensor.