P1121moderate severityPowertrain
Throttle Position Lower Than Expected
on 2009 Acura RL 3.5L V6 · AWD
What this code means
The TPS reading is lower than expected for current conditions.
Symptoms
- CEL
- Poor acceleration
- Stumbling
- Erratic idle
- Limp mode
Common causes
- Faulty TPS
- Sticking throttle
- Carbon buildup
- Damaged wiring
Diagnostic steps
- Monitor TPS with scan tool
- Clean throttle body
- Inspect wiring
- Test TPS
Repair notes
Clean throttle body or replace TPS.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1