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.
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HOMESERVICE MANUALSHYUNDAI1994SCOUPE LS, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - BASIC TESTINGFUEL SYSTEMMFI CONTROL RELAY TEST
1994 Hyundai Scoupe LS, Automatic
MFI Control Relay Test
1994 Hyundai Scoupe LS, AutomaticSECTION MFI Control Relay Test
CAUTION:
When applying direct battery voltage, ensure voltage is applied to correct terminal; otherwise, relay damage could result.
- Remove control relay, located under left side of dashboard, near instrument panel. Connect 12-volt battery across relay terminal No. 2 (negative) and terminal No. 4 (positive). See Fig 1 . Using ohmmeter, check continuity between terminals No. 1 and 5. Continuity should exist until voltage is disconnected.
- Reconnect battery voltage between terminals No. 2 and 4. Check continuity between terminals No. 3 and 5. Continuity should exist until voltage is disconnected. Replace relay if it fails any test.
RENDER: 1.0x
NO RELATED
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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.