Is It Safe to Drive With a P0108 Code?
Common Symptoms of a P0108 Fault
P0108 Symptoms at a Glance
EML on
Lean running possible
Rough idle
Hesitation
Possible Causes of P0108
A P0108 code can be triggered by faults across several systems. Identifying the exact root cause requires proper diagnostic equipment and live data — not just reading the code.
Common Causes of P0108
MAP Sensor Wiring Open
Open circuit in MAP sensor wiring.
MAP Sensor Failure
Sensor failed high.
Vacuum Hose Disconnected
Hose to MAP sensor is off causing ambient pressure reading.
ECU Input Fault
ECU MAP sensor input reference circuit.
Why we don't list the exact part: A P0108 code tells you what's happening but not why. Replacing parts without diagnosis is the most common way drivers waste money. A proper diagnosis identifies the specific cause first.
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P0108 and Your MOT
A stored P0108 fault code will cause your car to fail its MOT. The engine management light will be illuminated during the test — an automatic failure. Get the fault diagnosed and repaired, then have the code cleared before booking your test.