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 MANUALSHONDA2000ACCORD EX, 4D SEDAN, 2.3 CG5, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMINTAKE AIR SYSTEM (4-CYL)THROTTLE BODY TEST
2000 Honda Accord EX, 4D Sedan, 2.3 CG5, Standard
Throttle Body Test
2000 Honda Accord EX, 4D Sedan, 2.3 CG5, StandardSECTION Throttle Body Test
NOTE:
- Do not adjust the throttle stop screw. It is preset at the factory.
- If the Malfunction Indicator Lamp has been reported on, check for Diagnostic Trouble Codes (DTCs) (see GENERAL TROUBLESHOOTING INFORMATION ).
- With the engine off, check the throttle cable operation. The cable should move without binding or sticking.
- If the cable is OK, go to step 2.
- If the cable binds or sticks, check it and its routing. If it's faulty, reroute it or replace it and adjust it (see Throttle Cable Adjustment ), then go to step 2.
- Operate the throttle lever by hand to see if the throttle valve and/or shaft are too loose or too tight.
- If there is excessive play in the throttle valve shaft, or any binding in the throttle valve at the fully closed position, replace the throttle body.
- If the throttle valve and shaft are OK, go to step 3.
- Connect a scan tool to the Data Link Connector.
- Turn the ignition switch ON (II).
- Check the throttle position with the scan tool. There should be approx. 10% when the throttle is fully closed and approx. 90% when the throttle is fully opened.
- If the throttle position is correct, the throttle body is OK.
- If the throttle position is not correct, replace the throttle body.
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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.