P1100moderate severityPowertrain
MAP Sensor Circuit Malfunction
on 2001 Kia Optima 2.4L I4 · FWD
What this code means
The PCM has detected a malfunction in the Manifold Absolute Pressure sensor circuit. The MAP sensor signal is outside the expected voltage range or is not correlating with other engine sensor inputs.
Symptoms
- Check Engine Light
- Poor engine performance
- Rough idle
- Black smoke from exhaust
- Poor fuel economy
Common causes
- Faulty MAP sensor
- Vacuum hose to MAP sensor disconnected or leaking
- Wiring open or short in MAP circuit
- Corroded MAP sensor connector
- PCM 5V reference voltage issue
Diagnostic steps
- Check MAP sensor voltage at key-on engine-off (should read near barometric pressure)
- Inspect vacuum hose to MAP sensor
- Test MAP sensor with hand vacuum pump
- Check 5V reference and ground circuits
- Inspect MAP sensor connector for corrosion
Repair notes
Replace the MAP sensor if it does not respond correctly to vacuum changes.
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