MotorBitP0201: Injector Circuit / Open - Cylinder 1
Injector circuit fault on cylinder 1. Often pairs with a P0301 misfire.
Educational OBD2 information. Confirm on your vehicle with a scan tool. MotorBit can read this code, freeze frame, and live data over an ELM327 adapter.
What P0201 means
The PCM detected an open or short on injector 1 control circuit.
Why the check engine light comes on
That cylinder cannot be fueled correctly, so misfire and emissions follow.
Common causes
- Failed injector coil
- Open wire
- Connector pushed out
- PCM driver (rare)
Typical symptoms
- Misfire
- Fuel smell if shorted
- Rough idle
What to do next
- Check the connector at the injector.
- Measure injector resistance.
- Do not swap injectors blindly if the wiring is damaged.
How MotorBit helps
Open MotorBit, connect your ELM327, and read P0201 with freeze frame (RPM, load, temperature, speed at the moment the fault set). Then watch live PIDs and fuel trims instead of replacing parts by guesswork. When the repair is verified, clear the code and re-check monitors.
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FAQ
Is P0201 serious?
Severity is listed as high on this page. Misfire, crank/cam, and communication codes deserve faster attention than a tiny EVAP leak.
Will disconnecting the battery clear P0201?
It may hide the lamp temporarily, but the fault usually returns and you lose freeze-frame evidence. Scan first, then clear after the repair.
Can MotorBit clear P0201?
Yes, after you understand the cause. Clearing without a repair is how the light comes back on the next drive cycle.