Is It Safe to Drive With a P0113 Code?
Common Symptoms of a P0113 Fault
EML on
Possible rough idle
Slightly rich fuelling at cold starts
No significant driveability issues
Possible Causes of P0113
A P0113 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.
IAT Sensor Open Circuit
Wiring to the IAT sensor has an open circuit causing a high voltage reading.
IAT Sensor Failure
The sensor itself has failed open-circuit.
Connector Fault
Corrosion or damage in the IAT sensor connector.
ECU Input Fault
ECU reference voltage circuit issue.
Why we don't list the exact part: A P0113 code tells you what's happening but not why. Replacing parts based on the code alone is the most common way drivers waste money. A proper diagnosis identifies the specific cause first.
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P0113 and Your MOT
A stored P0113 fault code will cause your car to fail its MOT. The engine management light will be illuminated during the test — an automatic failure under current MOT standards. Even if the light temporarily clears, the code remains in ECU memory and can be read by testers.
Get the fault diagnosed and repaired first, then have the code cleared and confirm the light stays off before booking your MOT.