Cylinder 1 Injector Circuit Range/Performance
The P02EE code indicates that the Engine Control Module (ECM) has detected a malfunction in the electrical circuit or performance of the fuel injector for cylinder 1. This could be due to an open or short circuit, high resistance, or a mechanical issue with the injector itself, causing improper fuel delivery.
01. Most Common Causes
- Faulty fuel injector on cylinder 1
- Open or short circuit in injector wiring or connector
- Engine Control Module (ECM) failure
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Engine misfire or rough idle
- Decreased fuel economy
- Loss of power or hesitation during acceleration
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to retrieve freeze frame data and confirm the code.
Step 2: Visually inspect the injector wiring and connector for damage, corrosion, or loose connections.
Step 3: Measure resistance of cylinder 1 injector and compare to specifications (typically 12-16 ohms).
Step 4: Perform a injector balance test or use a noid light to check for injector pulse.
Step 5: If wiring and injector are okay, test the ECM output or replace the 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 the misfire can damage the catalytic converter and cause poor engine performance.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for diagnosis and repair, but can be higher if the injector or ECM needs replacement.