P0068: MAP/MAF - Throttle Position Correlation
What Does P0068 Mean?
P0068 is a diagnostic trouble code indicating: MAP/MAF - Throttle Position Correlation. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 6 different vehicle models.
Symptoms of P0068
- ⚠️ Check engine light illuminated
- ⚠️ Rough or unstable idle
- ⚠️ Hesitation during acceleration
- ⚠️ Loss of engine power
- ⚠️ Knocking or pinging noise
- ⚠️ Traction control system activated
Common Causes
- 🔍 Weak or failing fuel pump
- 🔍 Throttle body or throttle position sensor issue
- 🔍 Dirty or failed MAF sensor
- 🔍 Sensor or control module malfunction
P0068 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"VEHICLE WAS IN MOTION AT ABOUT 60 MPH ON A HIGHWAY AND THE RPMS DROPPED DRASTICALLY, THE ANTI SKID INDICATOR LIGHT CAME ON, THE VEHICLE LOST POWER TEMPORARILLY. I PULLED OVER AND SLOWED DOWN AND THE CAR RETURNED TO NORMAL. SAME EVENING VEHICLE WAS IN MOTION ABOUT 55 MPH ON A HIGHWAY WHEN THERE WAS A"
— Chevrolet Malibu owner, 12/27/2017
"P0017, P0018, P0019, P0068, P0089, P0106, P228C 2012 TRAVERSE ALL OF THESE CODE ARE ON THE SCANNER. THE VEHICLE WILL SLOW TO JUST ABOUT A STOP GOING DOWN THE ROAD. LOTS OF LIGHTS COME UP ON THE DASH, TRACTION CONTROL AND STABILITRAC, THE CAR IS IN THE DRIVEWAY AND WILL NOT TURN OVER. GM IS DOING NOT"
— Chevrolet Traverse owner, 02/04/2018
"This vehicle is owned by the City of Fort Lauderdale Police Department. We are submitting complaints for multiple Tahoe's that have stopped during operation causing extreme danger to our staff and other drivers in the city. The cause is always bad fuel pumps and our units have had to have the pumps"
— Chevrolet Tahoe owner, 09/11/2023
Source: NHTSA Complaints Database
Most Reported Vehicles for P0068
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | CHEVROLET MALIBU | |
| 2 | CHEVROLET TRAVERSE | |
| 3 | CHEVROLET TAHOE | |
| 4 | CHEVROLET IMPALA | |
| 5 | KIA SOUL | |
| 6 | KIA STINGER |
Frequently Asked Questions
Can I drive with this code?
Will this code cause my car to fail emissions?
How much does it typically cost to fix?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Test the relevant sensor(s) with a multimeter before replacing
- 🔧 Clean or replace the mass air flow (MAF) sensor; check for vacuum leaks
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.