P0201 OBD-II: Injector Circuit/Open - Cylinder 1
P0201 Severity
Should you fix P0201 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P0201?
The engine control module (PCM) has special transistors called "drivers" to turn the Fuel Injectors on and off in the Fuel Injection System. If the PCM cannot control the fuel injector, it will set code P0201.
What Does P0201 Code Mean?
Fault Code Definition
The Powertrain Control Module (PCM) uses special transistors—called "drivers"—to turn the Fuel Injectors on and off in the Fuel Injection System. Code P0201 indicates a problem in the operation of the #1 Fuel Injector Circuit.
P0201 Symptoms
- Check Engine Light will illuminate
- In some cases, the engine will misfire and have a rough idle
- In some cases, the vehicle will get poor fuel economy
Common Problems That Trigger the P0201 Code
- Defective Fuel Injector
- Faulty or corroded Fuel Injector, wiring, and/or connections
- Plugged Fuel Injector
- Dirt in the Fuel Injector
Common Misdiagnosis
- Fuel Injector or PCM is replaced when the problem is in the wiring and connections
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