OBD-II Generic Error Code P0272: How to Fix It

Q: What does P0272 mean?

P0272 means the engine computer detected a cylinder 4 contribution fault, often caused by a misfire or fuel issue specific to that cylinder.

Q: Can I drive with a P0272 code?

Driving short distances is possible, but reduced power and fuel economy may occur. Continued driving can damage the catalytic converter. Fix it promptly.

Q: How much does it cost to fix P0272?

Repair cost varies: spark plugs ($20-$100), ignition coils ($50-$200 each), fuel injectors ($100-$400 each), or engine repairs ($500-$2000+).

Q: Will clearing the code fix P0272?

Clearing the code may turn off the check engine light temporarily, but the underlying problem will likely return unless the root cause is addressed.

Q: What is the difference between P0272 and P0304?

P0272 is a cylinder 4 contribution fault specific to diesel or certain fuel systems, while P0304 is a generic misfire code for cylinder 4. Causes and diagnostics are similar.

Abstract

Error code P0272 indicates a cylinder 4 contribution fault, meaning the engine's computer has detected that cylinder 4 is not contributing power equally compared to the other cylinders. This can cause rough idle, misfires, reduced fuel economy, and illumination of the check engine light. Common causes include a faulty fuel injector, ignition problem, low compression, or wiring issues.