OBD-II code · Powertrain (generic, extended)
P2073 Manifold Absolute Pressure / Mass Air Flow - Throttle Position Correlation at Idle
At idle, the relationship between MAP/MAF and throttle position does not match the calibrated map — typically a vacuum leak, dirty MAF, sticking throttle plate, or sensor drift.
Is it safe to drive with P2073?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyVacuum leak — cracked hose, gasket, or PCV
- PossibleMAF sensor contaminated
- PossibleCarbon buildup at throttle plate
Symptoms
- Check engine light on
- Power loss, hesitation under acceleration
- Rough or unstable idle
- Increased fuel consumption
- Possible difficulty starting
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–3 h
- Emissions test
- Likely to fail
- Parts involved
- Manifold Absolute Pressure Sensor, Mass Air Flow Sensor, Throttle Position Sensor, Intake Manifold
Related codes
- P2070Intake Manifold Tuning (IMT) Valve Stuck Open (Bank 1)
- P2071Intake Manifold Tuning (IMT) Valve Stuck Closed (Bank 1)
- P2072Throttle Actuator Control System - Ice Blockage (Bank 1)
- P2074Manifold Absolute Pressure / Mass Air Flow - Throttle Position Correlation at Higher Load
- P2075Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit (Bank 1)
- P2076Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance (Bank 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.