MAP/MAF - Throttle Position Correlation
The engine computer sees a mismatch between the throttle opening and the air entering the engine. This usually means a dirty throttle body, bad airflow sensor, vacuum leak, or wiring problem. It can cause poor running, hesitation, or stalling.
You may be able to drive short distances, but the engine can hesitate, stall, or run poorly. If the check engine light is flashing, the car stalls, or power is very limited, do not continue driving.
P0068 means the powertrain control module has detected a correlation problem between throttle position and measured engine air flow, usually from the MAP and/or MAF signals. The computer expects these inputs to agree within a normal range under a given engine load and RPM, but one or more signals are reading incorrectly or responding too slowly.
It means the engine computer sees a mismatch between throttle position and the air flow signals from the intake system.
Yes. Carbon buildup can make the throttle plate stick or move incorrectly, which can trigger this code.
Yes. Extra air entering the engine can make the MAP and MAF readings disagree with throttle position.
Sometimes it may go away temporarily, but if the underlying fault remains, the code will return.
No. Inspect for air leaks, sensor issues, wiring problems, and dirt buildup first because those are more common and less expensive.