What are the common causes of P02B0?

A clogged or dirty cylinder 6 fuel injector. Low or high fuel pressure. A clogged fuel filter. Corrosion in the injector 6 connector. An internal or external leak in injector 6.

Run an injector balance test on cylinder 6. Check fuel pressure and replace a clogged filter. Inspect the injector 6 connector and wiring for corrosion. Run a fuel injector cleaner through the system. Replace injector 6 if the spray pattern is poor. Clear the code and retest.

P02B0

Cylinder 6 - Injector Restricted

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

What it means

P02B0 means Cylinder 6 - Injector Restricted.

Where it lives

For P02B0, start at the injector the description names. The description of P02B0 puts it on cylinder 6.

Check these first

A clogged or dirty cylinder 6 fuel injector
Low or high fuel pressure
A clogged fuel filter
Corrosion in the injector 6 connector
An internal or external leak in injector 6

What to do next

Run an injector balance test on cylinder 6
Check fuel pressure and replace a clogged filter
Inspect the injector 6 connector and wiring for corrosion
Run a fuel injector cleaner through the system
Replace injector 6 if the spray pattern is poor
Clear the code and retest

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Updated

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