Fuel Trim Load Group Above Limit Bank 1
2002-2005 Audi A4 3.0L V6
Description
The ECU detected that the fuel trim adaptation value for a specific load group on Bank 1 has exceeded its allowable range. This is a more granular fuel trim fault than general lean/rich codes.
Symptoms
- Check Engine Light
- Poor driveability at specific load points
- Rough running under load
- Possible misfire at certain RPM ranges
Common Causes
- Vacuum leak that worsens under load
- Fuel injector performance degradation
- MAF sensor drift at specific airflow ranges
- Intake manifold flap issue
- Fuel pump losing pressure under load
Diagnostic Steps
- Monitor fuel trims across RPM and load ranges
- Perform boost leak test on turbocharged models
- Test fuel pressure under load
- Check MAF sensor readings vs specifications
- Inspect intake manifold flaps
Repair Notes
Address the load-specific fuel trim issue by repairing vacuum leaks or replacing degraded components.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1141 on Other Vehicles
Common Questions
What does code P1141 mean on a 2002-2005 Audi A4?
P1141 stands for "Fuel Trim Load Group Above Limit Bank 1". The ECU detected that the fuel trim adaptation value for a specific load group on Bank 1 has exceeded its allowable range. This is a more granular fuel trim fault than general lean/rich codes.
What are the symptoms of P1141 on a Audi A4?
Common symptoms of P1141 include: Check Engine Light, Poor driveability at specific load points, Rough running under load, Possible misfire at certain RPM ranges.
What causes P1141 on a 2002-2005 Audi A4?
Common causes of P1141 include: Vacuum leak that worsens under load, Fuel injector performance degradation, MAF sensor drift at specific airflow ranges, Intake manifold flap issue, Fuel pump losing pressure under load.