FuelSeverity High: diagnose before driving on

P0200Injector Circuit/Open

What it means

The ECU sees an electrical fault in the injector circuits in general, often a shared supply or a driver problem rather than a single injector.

Symptoms

Misfires on one or more cylinders
Rough running or no start
Check engine light

Common causes

Missing injector supply (fuse, relay)
Wiring fault affecting several injectors
ECU injector driver or power stage fault
On diesels: injector boost voltage circuit fault

What to check first

Check the injector supply fuse and relay
Scope several injectors to see which ones are not switched
Check for other injector-specific codes (P0201–P0208)

Can I drive with P0200? Not recommended. P0200 can lead to stalling, limp mode or engine damage; diagnose it before driving further.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0200: questions and answers

What does P0200 mean?

P0200: Injector Circuit/Open. The ECU sees an electrical fault in the injector circuits in general, often a shared supply or a driver problem rather than a single injector.

What are the symptoms of P0200?

Misfires on one or more cylinders. Rough running or no start. Check engine light.

What causes P0200?

Missing injector supply (fuse, relay). Wiring fault affecting several injectors. ECU injector driver or power stage fault. On diesels: injector boost voltage circuit fault.

How do you diagnose P0200?

1. Check the injector supply fuse and relay 2. Scope several injectors to see which ones are not switched 3. Check for other injector-specific codes (P0201–P0208)

Can I drive with P0200?

Not recommended. P0200 can lead to stalling, limp mode or engine damage; diagnose it before driving further.