What are the common causes of P2073?

A vacuum leak upsetting the idle MAP or MAF reading. A dirty throttle body holding the idle airflow high. A skewed MAP or MAF sensor. A sticking throttle plate at idle.

Compare MAP, MAF, and throttle position at idle on a scan tool. Check the intake for vacuum leaks. Clean the throttle body. Test the MAP and MAF sensors against spec. Replace the throttle body or sensor if the correlation stays off. Clear the code and retest.

P2073

Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Idle

System: Fuel and air metering (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P2073 means Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Idle.

Check these first

A vacuum leak upsetting the idle MAP or MAF reading
A dirty throttle body holding the idle airflow high
A skewed MAP or MAF sensor
A sticking throttle plate at idle

What to do next

Compare MAP, MAF, and throttle position at idle on a scan tool
Check the intake for vacuum leaks
Clean the throttle body
Test the MAP and MAF sensors against spec
Replace the throttle body or sensor if the correlation stays off
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.