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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSHYUNDAI1994EXCEL GL, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODESDIAGNOSTIC TESTSCODE 41 - FUEL INJECTOR FAILURESCAN TESTER PROCEDURE
1994 Hyundai Excel GL, Standard
Scan Tester Procedure
1994 Hyundai Excel GL, StandardSECTION Scan Tester Procedure
- Access fuel injector service data item No. 41. Scan tester should display injector drive time. Ensure engine is at normal operating temperature. Turn all accessories off. Ensure shift selector is in Park or Neutral.
- Inspect fuel injector drive times with engine cranking and running. See FUEL INJECTOR DRIVE TIME table.FUEL INJECTOR DRIVE TIME
Coolant Temp. °F (°C) Engine RPM Drive Time (ms) Engine Cranking 32 (0) Less than 250 18 68 (20) Less than 250 34 176 (80) Less than 250 6.1 Engine Running 176 (80) 750 2.5-3.1 176 (80) 2000 2.2-2.8 - Access injector actuator test. Select items 01 through 04 for injectors No. 1 through No. 4. Check decrease in engine idle speed when each injector is disabled to confirm injector operation.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.