P1121moderate severityPowertrain
Throttle Position Lower Than Expected
on 2013 Acura MDX 3.7L 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
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1