Engine Error
P0108
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Severity
Medium
Symptoms
Engine surging, rich exhaust smell, poor acceleration
Common Causes
- Faulty MAP sensor
- Short to battery voltage in MAP circuit
- Failed fuel pressure regulator causing high pressure
- Bad PCM
How to Fix
- 1 Test and replace MAP sensor
- 2 Inspect wiring harness for shorts
- 3 Test fuel system pressure
- 4 Reflash or replace PCM
Estimated Repair Cost
USD
$80
–
$300
MAP sensor: $80 - $200; Labor: $100