P0068 — MAP/MAF – Throttle Position Correlation
Category: Powertrain Severity: Medium
Updated:
DTC code P0068 means: MAP/MAF – Throttle Position Correlation. It falls under the "Powertrain" category, with an estimated severity of Medium. Common causes include vacuum leak after the throttle, dirty or faulty MAF sensor and dirty throttle body; it's worth confirming the diagnosis before replacing parts.
Possible causes
- Vacuum leak after the throttle
- Dirty or faulty MAF sensor
- Dirty throttle body
- Faulty throttle position sensor
- Clogged air filter
Symptoms
- Rough or high idle
- Hesitation
- Limp mode
- Stalling
How to diagnose it step by step
- Check the air filter.
- Look for vacuum leaks (smoke test).
- Clean the throttle body.
- Clean the MAF sensor.
- Compare MAF/MAP against throttle opening on the scan tool.
How to fix it
Look for vacuum leaks and clean the throttle body and MAF with dedicated cleaner. After cleaning the throttle, perform an idle relearn.
Estimated repair cost
Cleaning: $30–100. MAF sensor: $100–300. Throttle body: $200–600.
Frequently asked questions
What does DTC code P0068 mean?
MAP/MAF – Throttle Position Correlation.
Is code P0068 serious?
Severity Medium. Not urgent, but worth diagnosing to avoid bigger damage.
Can I keep driving with code P0068?
Drive carefully; it may go into limp mode.
Related codes
P0087 P0088 P0089 P0046 P0045 P0093 P0038 P0037 P0036 P0031
Refine by car make
🛒 Buy engine parts at Autodoc (affiliate link)