DTC P1129: MAP Sensor Signal Higher Than Expected
- Start the engine. Hold the engine at 3,000 RPM with no load (in neutral) until the radiator fan comes on, then let it idle.
- Check the MAP with the HDS or a scan tool.
Is 36.9 kPa (277 mmHg, 10.9 in.Hg), or less indicated?
YES: Intermittent failure, system is OK at this time.
NO: Replace the MAP sensor (see THROTTLE BODY DISASSEMBLY/REASSEMBLY ).