P0068 moderate

MAP/MAF - Throttle Position Correlation

The P0068 code means the vehicle's onboard diagnostic system has detected: MAP/MAF - Throttle Position Correlation. This is a moderate severity code.

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Keep driving?: Short distances only
DIY difficulty: moderate
Estimated cost: $100 - $400 (parts and labor)

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Common Symptoms

Check Engine Light on
Engine hesitation or stumbling
Reduced power and poor acceleration
Rough or unstable idle

Probable Causes (Ranked by Likelihood)

Dirty or faulty MAF sensor Very High
Vacuum leak causing incorrect MAP readings High
Faulty throttle position sensor Moderate
Intake air leak between MAF sensor and throttle body Moderate

Step-by-Step Diagnostic Procedure

Confirm P0068 and check for related MAP, MAF, or TPS codes
Clean or test the MAF sensor
Inspect intake system for vacuum leaks
Check throttle position sensor readings against specification

Common Fixes by Vehicle

What techs usually find when diagnosing P0068 on specific vehicles — tap your vehicle for the fix and the exact part:

2005-2014 Dodge/Chrysler 5.7L/6.1L Hemi (Ram, Charger, 300, Challenger) Advanced DIY

MAP sensor reading disagrees with throttle/MAF because of a cracked intake manifold runner or failed short-runner valve (SRV) actuator. Inspect the manifold for cracks near the tuning valve housing and test the SRV actuator with a scan tool. Replace the intake manifold with updated part (usually around 100K miles).

Labor: 4-6 hr

Common fix part Dorman Hemi Intake Manifold 615-380 View on Amazon→ Compare fitment at PartsGeek→

2007-2018 Jeep Wrangler JK 3.8L/3.6L Easy (MAP), Moderate (vacuum) DIY

MAP sensor correlation with throttle position off — often due to a vacuum leak at the brake booster line or PCV hose. Smoke-test the intake and replace cracked vacuum lines. If leaks aren't found, replace the MAP sensor (located on the throttle body/manifold).

Labor: 45 min (MAP), 2 hr (vacuum leak)

Common fix part Standard Motor Products AS341 MAP Sensor View on Amazon→ Compare fitment at PartsGeek→

2011-2019 Chrysler 3.6L Pentastar (200, Town & Country, Journey) Moderate DIY

MAP/throttle correlation due to dirty throttle body causing idle learn issues. Clean the electronic throttle body with throttle-body-safe cleaner and perform a throttle relearn with a bidirectional scan tool. If code returns, replace the throttle body.

Labor: 1-2 hr

Common fix part Mopar Electronic Throttle Body 05184349AE View on Amazon→ Compare fitment at PartsGeek→

Frequently Asked Questions

What does P0068 mean?

P0068 means the ECM has detected a mismatch between the MAP or MAF sensor readings and the throttle position sensor readings, indicating one of these sensors may be faulty.

Can a dirty air filter cause P0068?

A severely clogged air filter could contribute by restricting airflow and affecting MAF readings, but it is more commonly caused by a dirty MAF sensor or vacuum leak.

How do I fix P0068?

Start by cleaning the MAF sensor with MAF cleaner spray. Check for vacuum leaks in the intake system and test the throttle position sensor. Replace any faulty components.