DTC P1129: MAP Sensor Signal Higher Than Expected
NOTE:
Before you troubleshoot, record all freeze data and review the general troubleshooting information (see
GENERAL TROUBLESHOOTING INFORMATION
).
- Start the engine. Hold the engine speed at 3,000 RPM without load (in neutral) until the radiator fan comes on, then let it idle.
- Check the MAP with a scan tool or the HDS.
Is about 36.9 kPa (10.9 in.Hg, 277 mmHg), or 1.1 V or less indicated?
- YES - Intermittent failure, system is OK at this time.
- NO - Replace the MAP sensor (see THROTTLE BODY DISASSEMBLY/REASSEMBLY ).