P0200: Injector Circuit/Open
P0200 means Injector Circuit/Open. The engine computer has detected a fault in the fuel injector control circuits, without isolating a single cylinder.
CodeP0200
SystemFuel injection
SeverityHigh
TypeGeneric powertrain
Can I keep driving? Limit driving and diagnose promptly. Continued driving can cause damage, stalling or limp mode.
Common symptoms
- Check engine light on
- Misfire and rough running
- Loss of power
- Poor fuel economy
Possible causes
- Open or shorted injector coil
- Damaged injector connector
- Wiring fault between injector and engine computer
- Engine computer injector driver fault
How to diagnose P0200
- Check the injector connector and wiring.
- Measure injector coil resistance and compare with specification.
- Use a noid light or scope to confirm the computer is pulsing the injector.
- Swap injectors between cylinders where practical and see whether the fault moves.
What the code means, digit by digit
PPowertrain0Generic (SAE) code2Sub-system00Specific fault
Generic codes have the same definition on every OBD-II vehicle (petrol cars from model year 1996 in the US, 2001 in the EU; diesels later). Manufacturers can add their own enhanced codes; those are not listed here.
Related codes
- P0201 Injector Circuit/Open - Cylinder 1
- P0202 Injector Circuit/Open - Cylinder 2
- P0203 Injector Circuit/Open - Cylinder 3
- P0204 Injector Circuit/Open - Cylinder 4
- P0205 Injector Circuit/Open - Cylinder 5
- P0206 Injector Circuit/Open - Cylinder 6
- P0207 Injector Circuit/Open - Cylinder 7
- P0208 Injector Circuit/Open - Cylinder 8
General guidance only. Fault codes describe what the engine computer saw, not which part failed: confirm with testing before replacing parts, and follow the vehicle's service information.