P1105 – MAP Sensor Circuit Malfunction
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Symptoms
- Rough idle
- Hesitation
- Poor acceleration
- High fuel trims
- Check engine light
Causes
- Faulty MAP sensor
- Vacuum leak
- Wiring issue
- Connector problem
- ECU issue
Diagnosis
- Inspect MAP wiring
- Test MAP voltage
- Check vacuum lines
- Scan live data
- Inspect connectors
Repair
- Replace MAP sensor
- Fix vacuum leaks
- Repair wiring
- Fix connectors
- Update ECU