What are the common causes of P0269?

A weak or clogged cylinder 3 fuel injector. Low compression in cylinder 3. A worn or fouled spark plug or coil on cylinder 3. A vacuum leak at the cylinder 3 intake runner. A faulty oxygen sensor skewing the trim.

Run an injector balance test and compare cylinder 3 to the others. Do a compression and leak down test on cylinder 3. Inspect the cylinder 3 plug and coil for wear. Check the oxygen sensor reading against the other bank. Replace injector 3 if it is weak or clogged. Clear the code and retest.

P0269

Cylinder 3 Contribution/Balance

System: Injector circuits (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P0269 means Cylinder 3 Contribution/Balance.

Check these first

A weak or clogged cylinder 3 fuel injector
Low compression in cylinder 3
A worn or fouled spark plug or coil on cylinder 3
A vacuum leak at the cylinder 3 intake runner
A faulty oxygen sensor skewing the trim

What to do next

Run an injector balance test and compare cylinder 3 to the others
Do a compression and leak down test on cylinder 3
Inspect the cylinder 3 plug and coil for wear
Check the oxygen sensor reading against the other bank
Replace injector 3 if it is weak or clogged
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.