Cylinder 1 Injector Circuit Open - Bank 2
The P2651 code means the vehicle's onboard diagnostic system has detected: Cylinder 1 Injector Circuit Open - Bank 2. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $600 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Engine misfire on cylinder 1 Bank 2
- Rough idle
- Loss of power
- Fuel smell from exhaust
Probable Causes (Ranked by Likelihood)
- Open circuit in injector wiring harness Very High
- Faulty fuel injector coil High
- Corroded injector connector Moderate
- PCM injector driver failure Low
Step-by-Step Diagnostic Procedure
-
Read freeze frame data and confirm P2651 is present
-
Test injector resistance with multimeter
-
Check wiring continuity from PCM to injector
-
Swap injector with known good cylinder to isolate fault
Frequently Asked Questions
What does P2651 mean?
P2651 indicates a problem with the cylinder 1 injector circuit open - bank 2. This means the fuel delivery to one or more cylinders is not balanced properly.
Can I drive with a P2651 code?
You can drive short distances, but the engine will run rough and may cause catalytic converter damage over time. Have it diagnosed promptly.
How much does it cost to fix P2651?
Repairs typically cost $200 - $600. Injector cleaning is least expensive, while injector replacement costs more.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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