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Code

P0261

Fuel / Injectors

Injector 1 circuit low

The cylinder 1 injector circuit reads too low.

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Most likely causes

Shorted injector
Wiring short
ECM driver fault

Symptoms you may notice

Misfire on cylinder 1
Rough idle
Check engine light

Checks to run

Test injector resistance
Check wiring
Swap injector

Tools you may need

Multimeter Noid light

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Fuel / Injectors

Injector circuit malfunction — Cylinder 1

Injector circuit malfunction — Cylinder 2

Injector circuit malfunction — Cylinder 3

Injector circuit malfunction — Cylinder 4

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