Q: An intermittent misfire has triggered several trouble codes

asked by on

Intermittent misfire that sets multiple injector circuit failure codes. The codes are P0201, P0203, P0204, P0205, and P0206.

My car has 110000 miles.
My car has an automatic transmission.

Hi and thanks for your question. The codes P0201, P0203, P0204, P0205, P0206 are the cylinders that are not working. Your vehicle is only running on three cylinders that have fuel and possible fuel with the other cylinders at random times. Start the engine up and unplug on fuel injector at a time. If the engine begins to operate more rough than normal, then that injector is working correctly. If the engine does not change anything then that fuel injector was not working.

For each plug that you find is not working, check the harness for a voltage reference. If there is voltage, then the injector has stopped working and needs replaced. If there is no voltage, then get a noid light and plug it into the harness. This will check to see if the computer is sending signals to the injector. If there is no signal to the injectors, then there could be a break in the wiring or the computer could be damaged. If you need assistance in troubleshooting the misfire, then seek out a professional mechanic, such as one from YourMechanic, to help you with your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. An intermittent misfire has triggered several trouble codes

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Abs e-brake asc service engine soon lights

Hi there: In most cases, when all of these lights are illuminated on the dashboard, it's typically caused by a faulty speed sensor inside the transmission; as it's one of the few components that helps to activate all of these...

Q: How do I replace my ignition switch with new ignition switch and key then program it to the car

We would need your model year to advise you regarding the specific service procedure as it can vary from year to year. The exact procedure is set forth in the Factory Service Manual (FSM) and you will need a copy...

Q: Headlights flash on and off

If your vehicle is experiencing intermittent problems with the headlights, there is probably some sort of electrical problem present somewhere. That particular year and model is known display symptoms such as the ones you describe, when the Central Timer Module...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...