P0262

High Severity

Cylinder 1 Injector Circuit High

Fuel System

P0262 — Instant Answer

Cylinder 1 Injector Circuit High

Severity: HIGH SEVERITY

Meaning: High voltage in cylinder 1 injector circuit. Usually open circuit.

Safe to drive? NO if CEL is flashing. YES with caution if solid, but repair this week.

Estimated repair cost: $40 - $150

Most common causes:

  • 1. Open injector circuit (35-45% of cases)
  • 2. Corroded connector (10-25% of cases)
  • 3. Broken wire (10-25% of cases)

Symptoms

  • ⚠️Cylinder 1 misfire
  • ⚠️Rough idle
  • ⚠️Loss of power

Related Symptoms

Common Causes

Open injector circuitlikely
Corroded connectorpossible
Broken wirepossible

How to Diagnose P0262

  1. 1Check injector connector
  2. 2Measure resistance (infinite = open)
  3. 3Check wiring continuity
  4. 4Replace injector

OEM Procedures for P0262

Engine Controls And Fuel - 2.7L - Diagnostic Information And Procedures (2 Of 4) Found 103 OEM service manual procedures.

Fuel Injector

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
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Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Engine Code Information Label - Fuel Injector Replacement Label

Fuel Injector
No link

Showing 8 of 103 procedures

OEM Diagnostic Flowchart

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Parts & Tools for This Job

Common parts shoppers buy for P0262 Cylinder 1 Injector Circuit High.

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0262.

Frequently Asked Questions

What does high circuit mean for an injector?
High circuit usually means an open connection — the injector is not getting its ground path back to the ECM.
Can a corroded connector cause this?
Absolutely — corrosion in the injector connector is a very common cause of open-circuit injector codes.

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Author & Review

Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.

Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.

Last updated: 2026-10-29

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