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 MANUALSHYUNDAI1994EXCEL GL, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODESDIAGNOSTIC TESTSCODE 42 - FUEL PUMP FAILURESCAN TESTER PROCEDURE
1994 Hyundai Excel GL, Standard
Scan Tester Procedure
1994 Hyundai Excel GL, StandardSECTION Scan Tester Procedure
Access scan tester service data item No. 7. While cranking engine, check fuel return hose for pulsation, indicating fuel flow. Remove filler cap and listen for pump operating sound. Fuel pump is located inside fuel tank.
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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.