Cylinder 11 Injector Leaking
The P02C5 code indicates that the fuel injector for cylinder 11 is leaking, causing an imbalance in the air-fuel mixture. This can lead to rough idling, misfires, increased fuel consumption, and potential damage to the catalytic converter. The leak may be internal (dripping into the cylinder) or external (fuel seepage).
01. Most Common Causes
- Faulty fuel injector (stuck open or damaged seal)
- Contaminated fuel causing injector sticking
- Worn injector O-rings or seals
02. Symptoms You Will Notice
- Rough idle or engine misfire
- Strong fuel smell from exhaust or engine bay
- Decreased fuel economy
- Check Engine Light illuminated
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Perform a fuel injector balance test using a scan tool.
Step 3: Inspect injector electrical connector and wiring for damage.
Step 4: Remove injector and test for leakage with a fuel pressure gauge.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
No, driving with a leaking injector can cause engine damage, catalytic converter failure, and poses a fire risk due to fuel leaks.
How much does it cost to fix?▼
Replacing a single fuel injector typically costs $50-$150 for parts and labor, but if multiple injectors or the catalytic converter are damaged, costs can exceed $1000.