Cylinder 10 Injector Circuit Low
The P0288 code indicates that the powertrain control module (PCM) has detected a low voltage or resistance condition in the electrical circuit of the fuel injector for cylinder 10. This typically means the injector circuit is drawing less current than expected, often due to a short to ground, open circuit, or a faulty injector. The PCM monitors the injector driver circuit and sets this code when the voltage is below the specified threshold, which can lead to reduced fuel delivery and engine performance issues.
1. Most Common Causes
- Faulty fuel injector on cylinder 10 or high internal resistance
- Short to ground in the injector circuit wiring
- Loose or corroded connection at the injector connector
- Excessive resistance in the wiring harness due to damage or wear
- Faulty ECM/PCM (less common)
- Poor ground connection in the injector circuit
2. Symptoms You Will Notice
- Engine misfire on cylinder 10
- Rough idle or hesitation
- Check Engine Light illuminated
- Reduced fuel economy
3. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm the code and check for additional codes.
Step 2: Visually inspect the wiring and connector for cylinder 10 injector for damage, corrosion, or loose connections.
Step 3: Measure resistance of the injector; should be within spec (typically 12-16 ohms).
Step 4: Check for voltage at the injector connector with key on; should see battery voltage on one pin.
Step 5: Perform a continuity test from the injector connector to the PCM to rule out open or short circuits.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code 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, depending on whether the injector needs replacement or if it's a wiring repair.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.