P1511
Throttle Control System Backup System Performance
P1511 is an OBD-II diagnostic trouble code meaning: Throttle Control System Backup System Performance. Common causes: throttle position sensor malfunction, problems with the throttle body wiring. Estimated repair cost: $33–167.
Symptoms
- Unstable engine idling
- Reduced engine power
- Check Engine Light Illuminates
- Dips when pressing the gas pedal
- Activating emergency engine operation
Causes
- Throttle Position Sensor Malfunction
- Problems with the throttle body wiring
- Mechanical damage to the throttle valve
- Throttle assembly contamination
- Software error in the engine control unit
How to Fix
- Check the condition of the throttle body and clean if necessary
- Check the integrity of the wiring harness to the throttle valve
- Check the operation of the throttle position sensor
- Carry out throttle valve adaptation using diagnostic equipment
- If necessary, replace the throttle assembly
Related codes
Error P1511 by Vehicle Brand
FAQ
What does the P1511 code mean?
P1511 is an OBD-II diagnostic trouble code that indicates: Throttle Control System Backup System Performance
What causes a P1511 error code?
The most common causes of P1511 include: Throttle Position Sensor Malfunction; Problems with the throttle body wiring; Mechanical damage to the throttle valve; Throttle assembly contamination.
How do I fix a P1511 diagnostic trouble code?
To fix P1511: Check the condition of the throttle body and clean if necessary. Check the integrity of the wiring harness to the throttle valve. Check the operation of the throttle position sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1511?
Limited driving only, diagnose soon
How much does it cost to fix P1511?
The estimated repair cost for P1511 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat