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 36, Injection Pulse Width Error (Response Time Long): Notes
Fuel injector driver receives an inject command signal from PCM and provides a current regulated output to fuel solenoid that controls injection. It also returns an injection pulse width signal back to PCM to inform it when the fuel solenoid has actually seated. This injection pulse width signal is measured in micro seconds. DTC 36 will set when:
- Battery voltage is greater than 10 volts.
- Engine coolant temperature is greater than 68°F (20°C).
- Injection pulse width is greater than 2.5 milliseconds.
PCM will default to a fixed injection pulse width value of 1.95.
- This step determines if DTC 36 is result of a hard failure or an intermittent condition.
- This step determines if solenoid is at fault, or if problem is with PCM or wiring.
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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.