Cause
Blocked or split MAP sensor vacuum hose
The small hose connecting the manifold pressure sensor to the manifold. Blocked with carbon, the sensor reads a stale pressure; split, it reads atmospheric — and in both cases the sensor is perfectly good, which is why it gets replaced without result.
Typically an easy fix. Often worth checking before paying anyone to look.
Codes this can cause (11)
Codes where this is a likely explanation first, rather than merely a possible one.
- P0069 Manifold Absolute Pressure — Barometric Pressure Correlation Likely for this code Moderate
- P0105 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Likely for this code High
- P0106 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Range/Performance Likely for this code High
- P0108 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High Likely for this code High
- P0109 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Intermittent Likely for this code Moderate
- P2A0A Manifold Absolute Pressure Sensor B Circuit Likely for this code High
- P2A0B Manifold Absolute Pressure Sensor B Circuit Range/Performance Likely for this code High
- P2A0C Manifold Absolute Pressure Sensor B Circuit Low Likely for this code High
- P2A0D Manifold Absolute Pressure Sensor B Circuit High Likely for this code High
- P2A0E Manifold Absolute Pressure Sensor B Circuit Intermittent/Erratic Likely for this code High
- P0129 Barometric Pressure Too Low Moderate
Information, not instruction
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