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.
Electronic Control Unit (ECU)
The ECU is located behind cover in front passenger footwell. Ambient temperature around ECU must not exceed 180°F (85°C).
With ignition switched on, ECU is connected to battery voltage. An intake manifold pressure sensor is located within the ECU. This provides the ECU with engine load information.
The ECU controls the boost pressure, fuel mixture and ignition timing based on intake manifold pressure, coolant temperature and intake air temperature. The ECU also uses signals from the throttle switch to richen the mixture during wide open throttle operation.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.