Cylinder 5 Injector Circuit Range/Performance
The P02F2 code indicates that the Engine Control Module (ECM) has detected a malfunction in the electrical circuit or performance of the fuel injector for cylinder 5. This could be due to an open or short circuit, high resistance, or a mechanical issue with the injector itself. The ECM monitors the injector's electrical characteristics and fuel delivery; when they fall outside expected parameters, this code is set.
01. Most Common Causes
- Faulty fuel injector on cylinder 5
- Open or short circuit in injector wiring or connector
- Engine Control Module (ECM) failure
- Corrosion or damage at injector connector
02. Symptoms You Will Notice
- Engine misfire on cylinder 5
- Rough idle or hesitation during acceleration
- Check Engine Light illuminated
- Decreased fuel economy
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm the code and check for additional codes.
Step 2: Visually inspect the injector connector and wiring for damage or corrosion.
Step 3: Measure resistance of cylinder 5 injector and compare to specifications (typically 12-16 ohms).
Step 4: Perform a injector balance test or power balance test to isolate the faulty injector.
Step 5: If wiring and injector are good, test the ECM output signal for cylinder 5 injector.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause engine misfire, reduced performance, and potential damage to the catalytic converter.
How much does it cost to fix?▼
The cost typically ranges from $150 to $400, including parts and labor, depending on whether the injector or wiring needs replacement.