Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0200: Injector Control Circuit: Description
The injector system on both the DOHC and SOHC engines utilize Sequential Fuel Injection (SFI). The PCM independently controls each fuel injector through a driver circuit, in accordance with intake valve opening. The driver circuit is internally located in the PCM, providing the ground for each injector. The length and time an injector is held open (grounded by PCM) is calculated based on engine speed, load and valve location from the crankshaft position sensor. DTC is used when PCM cannot distinguish which injector circuit has failed or type of fault that occurred (open, short to ground or short to voltage) with circuit because length of time condition existed was to short.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.