OBD
OBDIICSU

P0262

Severity: Medium

Cylinder 1 Injector Circuit High

Last updated: July 2026

System
Powertrain
Subsystem
Fuel & Air Metering (Injector Circuit)
Code Type
Generic (SAE)

What does P0262 mean?

P0262 is a generic (SAE) powertrain diagnostic trouble code. It is defined as "Cylinder 1 Injector Circuit High". It falls under the fuel & air metering (injector circuit) area of the vehicle’s powertrain system, and has the same core meaning across most makes and models.

When is P0262 set?

The onboard diagnostic system sets P0262 when it detects a condition matching "cylinder 1 injector circuit high" in the fuel & air metering (injector circuit) circuit or system. When the fault is confirmed, the module stores the code and, in most cases, turns on a warning light.

This code is generally moderate. The vehicle is often still drivable, but the underlying fault should be diagnosed before it leads to further problems.

Common symptoms

Possible causes

What to check first

  1. Scan for all stored and pending codes and note the freeze-frame data
  2. Inspect the wiring and connectors for the affected circuit
  3. Check for related leaks, loose components or obvious damage
  4. Test the relevant sensor and its reference/ground with a meter
  5. Clear the code and retest to see whether it returns

Frequently asked questions

What does the P0262 code mean?

P0262 means "Cylinder 1 Injector Circuit High". It is a generic powertrain trouble code in the fuel & air metering (injector circuit) area.

Is it safe to drive with a P0262 code?

The vehicle is often still drivable with this code, but you should have it diagnosed soon so a moderate fault does not turn into a larger one.

How do I fix a P0262 code?

There is no single fix. Start by confirming the code with a scan tool, then work through the likely causes and checks above — inspecting wiring, connectors and the relevant components before replacing any parts. On most vehicles, confirm the diagnosis before repairs.

Can I clear the P0262 code myself?

You can clear the code with an OBD-II scan tool, but if the underlying fault is still present it will usually return. Clearing without repair is only useful to confirm whether the fault is active.

Related codes

Important

This information is provided for general reference only. It is not repair advice and may not apply to every make or model. Manufacturer-specific codes can differ. Always confirm a diagnosis with a scan tool and, where needed, a qualified technician before replacing parts.