Is It Safe to Drive With a P0202 Code?
Common Symptoms of a P0202 Fault
Cylinder 2 misfire
Rough idle
EML on
Loss of power
Possible Causes of P0202
A P0202 code can be triggered by faults in several different vehicle systems. Identifying the specific root cause requires proper diagnostic equipment and live data analysis — not just reading the code itself.
Injector Wiring Fault
Wiring to cylinder 2 injector has an open circuit.
Connector Failure
Connector to cylinder 2 injector has failed.
Injector Solenoid Failure
Cylinder 2 injector has internal open circuit.
ECU Driver Circuit
ECU output for cylinder 2 injector has failed.
Why we don't list the exact part: A P0202 code tells you what's happening but not why. Replacing parts based on the code alone without proper diagnosis is the most common way drivers waste money. A proper diagnosis identifies the exact cause first.
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P0202 and Your MOT
A stored P0202 fault code will cause your car to fail its MOT. The engine management light will be illuminated during the test, which is an automatic failure under current MOT testing standards. Even if the light clears temporarily, the code remains in the ECU memory and can be read by the tester's equipment.
Get the fault properly diagnosed and repaired first — then have the code cleared and confirm the light doesn't return before booking your test.