Is It Safe to Drive With a P0152 Code?
Common Symptoms of a P0152 Fault
P0152 Symptoms at a Glance
EML on
Rich condition on bank 2
Poor economy
Rough idle
Possible Causes of P0152
A P0152 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 P0152
O2 Sensor Wiring Short to Voltage — Bank 2
Bank 2 sensor wiring shorted high.
O2 Sensor Failure
Sensor stuck reporting rich on bank 2.
Actual Rich Condition
Engine genuinely rich on bank 2.
Contaminated Sensor
Oil or coolant contamination on sensor element.
Why we don't list the exact part: A P0152 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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P0152 and Your MOT
A stored P0152 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.