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.
MFI Control Relay Inspection
- Check continuity of relay contacts between terminals 5 (+) and 1 (-).MFI CONTROL RELAY CONTINUITY CONDITIONS
Relay coil (between terminal 2 & 4) Continuity When de-energized No When energized Yes - If faulty, replace the MFI control relay.
Tightening torque
MFI control relay:
7~11 Nm (70~110 kg.cm, 5.2~8.1 lb.ft)
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.
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