P1128moderate severityPowertrain
MAP Sensor Value Lower Than Expected
on 2005 Acura TSX 2.4L I4 · FWD
What this code means
The MAP sensor reading is lower than expected for current conditions.
Symptoms
- CEL
- Poor performance
- Lean condition
- Hesitation
- Rough idle
Common causes
- Vacuum leak
- Faulty MAP sensor
- Clogged vacuum line
- Faulty PCM
Diagnostic steps
- Check for vacuum leaks
- Test MAP sensor
- Inspect vacuum line
- Compare readings
Repair notes
Fix vacuum leak or replace MAP sensor.
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