P0109moderate severityPowertrain
MAP/BARO Pressure Circuit Intermittent
on 2002 Chevrolet Express 6.0L V8 Vortec · RWD
What this code means
The MAP sensor signal is showing intermittent readings.
Symptoms
- Check Engine Light (intermittent)
- Erratic idle
- Stumble on acceleration
Common causes
- Loose connector
- Damaged wiring
- Intermittent vacuum leak
Diagnostic steps
- Wiggle test on connector
- Monitor MAP signal
- Check vacuum hose
Repair notes
Repair connector or wiring.
Other Powertrain codes on this vehicle
P0001
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P0002
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P0004
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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