P1514
Throttle Actuator Control System Mass Air Flow Performance
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Unstable engine idling
- Dips during acceleration
- Increased fuel consumption
- Check Engine Light Illuminates
- Reduced engine power
Causes
- Throttle valve contamination
- Malfunction of the mass air flow sensor (MAF)
- Air leaks in the intake tract
- Problems with wiring or contacts
- Mechanical damage to the throttle assembly
How to Fix
- Check the condition of the throttle valve and clean if necessary
- Check the performance of the mass air flow sensor
- Inspect the intake tract for air leaks
- Check the integrity of wiring and contacts
- Carry out throttle valve adaptation using diagnostic equipment