Fuel SystemModerate✅ DIY Friendly

P0262

Q: What does OBD2 code P0262 mean?

P0262 means: Cylinder 1 Injector Circuit High. The fuel injector circuit for cylinder 1 is reading a higher resistance/voltage than expected.

Cylinder 1 Injector Circuit High

The fuel injector circuit for cylinder 1 is reading a higher resistance/voltage than expected.

SeverityModerate

CategoryFuel System

Est. Repair Cost$150-$400

Code TypePowertrain

DIY RepairYes

⚡ Common Causes

›Faulty injector
›Open circuit in injector wiring
›Blown fuse
›Failed injector driver in ECM

⚠️ Symptoms

›Check engine light
›Misfire on cylinder 1
›Rough idle
›Possible no-start on that cylinder

✅ How to Fix — Step by Step

Step 1:Test injector resistance
Step 2:Inspect wiring for open circuit
Step 3:Check fuse
Step 4:Replace injector if faulty

🔧 Diagnostic Tools Required

✔OBD-II Diagnostic Scanner
✔Digital Multimeter
✔Basic Hand Tools
✔Flashlight
✔Vehicle Service Manual

Using the correct diagnostic tools helps identify the root cause of P0262 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: A circuit-high reading often indicates an open circuit - check the wiring harness connector for corrosion or a broken pin first.

Frequently Asked Questions

What does OBD2 code P0262 mean?+

P0262 stands for Cylinder 1 Injector Circuit High. The fuel injector circuit for cylinder 1 is reading a higher resistance/voltage than expected.

What causes code P0262?+

Faulty injector; Open circuit in injector wiring; Blown fuse; Failed injector driver in ECM

How do I fix code P0262?+

Test injector resistance; Inspect wiring for open circuit; Check fuse; Replace injector if faulty

How much does it cost to fix P0262?+

Estimated repair cost for P0262 is $150-$400.

Is P0262 DIY-friendly?+

Yes — P0262 is generally DIY-friendly with basic tools.