P2073Fuel & Air Metering

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

P2073 means the ECM detected that the manifold pressure or mass air flow reading does not correlate with throttle position at idle. This points to a sensor, vacuum, or throttle issue that upsets the air measurement at idle. Causes include a vacuum leak, a dirty MAF or MAP sensor, or a throttle body problem.

🚗 Yes, but idle quality and fuel control may suffer until repaired.

MEDIUM

severity

🎯 Top Causes, Ranked by Likelihood

#1Intake vacuum leak$20-$300

35%

Unmetered air at idle throws off the MAP or MAF correlation.

#2Dirty or failing MAF or MAP sensor$30-$300

30%

A contaminated sensor reports incorrect airflow or pressure.

#3Dirty throttle body or sticking throttle$50-$250

25%

Deposits change the actual airflow at a given throttle position.

#4Wiring or connector fault$50-$200

10%

A circuit issue skews a sensor signal.

🩺 Common Symptoms

Check engine light on
Rough or unstable idle
Possible hesitation
Slight drop in fuel economy

💰 Repair Cost: DIY vs Shop

DIY Cost

$20-$300

Shop Cost

$100-$500

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose P2073

1Scan for related MAF, MAP, and throttle codes

2Inspect for intake vacuum leaks

3Clean the MAF sensor and throttle body

4Compare MAP, MAF, and throttle position live data at idle

❓ Frequently Asked Questions

Can I drive with a P2073 code?

Short-term yes, but idle quality and fuel control may suffer. Repair it soon.

How much does it cost to fix P2073?

Cleaning or a vacuum fix can be cheap, while a sensor or throttle body runs $100 to $500 at a shop.

What is the most common cause of P2073?

An intake vacuum leak or a dirty MAF or MAP sensor are the most common causes.

🔗 Related Codes

P0101P0106P0121P2004P2006