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P0201 - OBD-II Trouble Code

Our automotive experts have put together the following information about the P0201 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0201 code.

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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