TORQDEX // POWERTRAIN DTC
Injector Circuit Malfunction — Cylinder 2
An electrical fault has been detected in the fuel injector circuit for cylinder 2.
00 // CODE DEFINITION
What P0202 means
P0202 indicates an electrical problem in cylinder 2's fuel-injector circuit.
The injector, harness, connector, power feed, or control-module driver may be responsible.
01 // COMMON SYMPTOMS
What you may notice
02 // COMMON CAUSES
What can trigger P0202?
Injector coil fault
The injector may be open, shorted, or outside normal resistance.
Circuit damage
Open or shorted wiring can prevent injector control.
Poor terminal contact
Corrosion or loose pins can interrupt current.
03 // DRIVEABILITY
Can I keep driving with P0202?
Use caution. A high-severity fault can affect engine, transmission, electrical, or emissions-system operation. If the vehicle is running poorly, overheating, losing oil pressure, flashing the check-engine light, or entering reduced-power mode, avoid continued driving until the cause is diagnosed.
04 // DIAGNOSTIC ORDER
Start here
Check for P0302
Confirm whether cylinder 2 also has a misfire fault.
Inspect injector wiring
Check the harness and connector.
Measure injector resistance
Compare cylinder 2 with specifications and neighboring injectors.
Verify injector command
Check injector power and control signal.
05 // COMMON REPAIR AREAS
Systems commonly involved
These are common areas associated with P0202. Testing should confirm the actual fault before parts are replaced.
Injector coil fault
The injector may be open, shorted, or outside normal resistance.
Circuit damage
Open or shorted wiring can prevent injector control.
Poor terminal contact
Corrosion or loose pins can interrupt current.
06 // DIAGNOSTIC PRINCIPLE
Confirm the fault before replacing parts
P0202 identifies a condition detected by the vehicle control system. It does not automatically identify one failed component. Test the affected system before replacing parts.
07 // RELATED TORQDEX DIAGNOSTICS
Related diagnostic guides
Continue troubleshooting by symptom and system. These TorqDex guides cover common diagnostic paths associated with this trouble code.
08 // RELATED CODES