Open or shorted injector coil; Damaged injector connector; Wiring fault between injector and engine computer; Engine computer injector driver fault.

P0202: Injector Circuit/Open - Cylinder 2

Q: What does P0202 mean?

P0202: Injector Circuit/Open - Cylinder 2. The engine computer has detected an open circuit or other electrical fault in the injector circuit for cylinder 2. Without fuel, cylinder 2 will misfire.

Q: Is it safe to drive with P0202?

Severity: High. Limit driving and diagnose promptly. Continued driving can cause damage, stalling or limp mode.

P0202 means Injector Circuit/Open - Cylinder 2. The engine computer has detected an open circuit or other electrical fault in the injector circuit for cylinder 2. Without fuel, cylinder 2 will misfire.

CodeP0202

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 P0202

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-system02Specific 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

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.