P02F2

Cylinder 5 Injector Circuit Range/Performance

Q: Is it safe to drive with P02F2?

For short trips, usually — but a mis-delivering injector can cause a misfire, and sustained misfires damage the catalytic converter. Repair it soon.

Q: Can I just clear P02F2?

It will come back until the injector circuit fault is fixed. Clearing only resets the light temporarily.

Fuel injection Generic OBD-II High

What it means

P02F2 means the ECM sees the cylinder 5 fuel injector's electrical signal falling outside its expected range — the injector or its circuit isn't responding the way it should. This can make cylinder 5 misfire or run rough, so it's worth tracing to the injector or its wiring before the misfire strains the catalytic converter.

High

Can I keep driving? You can usually drive short-term, but cylinder 5 may misfire and run rough — get it checked before a persistent misfire damages the catalytic converter.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Rough idle or misfire from cylinder 5
Hesitation or reduced power under load
Slightly increased fuel consumption

Common causes

Most likely first

Faulty cylinder 5 fuel injector (out-of-spec resistance or response)Likely
Wiring or connector fault on the injector circuit (open, short, or chafed harness)Common
Poor or corroded connection at the injector or driver moduleCommon
Failing injector driver in the ECM/injector control moduleLess often

How to diagnose & fix

Work through it in order

Read freeze-frame data and confirm the fault is on cylinder 5's injector circuit.
Inspect the injector connector and wiring for damage, corrosion, or a loose pin.
Measure the injector's resistance and compare it to the other cylinders.
Swap the suspect injector with a known-good cylinder to see if the fault follows it.
If wiring and injector check out, test the driver circuit at the control module. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P02F2?+

For short trips, usually — but a mis-delivering injector can cause a misfire, and sustained misfires damage the catalytic converter. Repair it soon.

Can I just clear P02F2?+

It will come back until the injector circuit fault is fixed. Clearing only resets the light temporarily.

Read & clear P02F2 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX