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.

High Severity

Fuel System

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

Common Fix

Replace injector or repair wiring

Estimated Cost (DIY)

$40 - $150

Open injector circuitlikely

Corroded connectorpossible

Broken wirepossible

Need to read or clear this code?

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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