Honda Car Forum

Where is the idle screw on a 1996 Honda Accord ex 2dr 2.2 engine?

yeah but better yet they have problems with there motor mounts

Very unlikely this engine has an idle screw. These went away with the old fashioned carburetor.This engine more than likely has electronic fuel injection. With electronic fuel injection the engine idle speed is regulated by the engine management computer and is not adjustable.If you are having idling problems it is more than likely some problem with the engine.When was the last time it had a tune-up? It may be due spark plugs, spark plug wires and an air filter.Are there any modifications made to the engine? Maybe an after market part like a cold air kit was installed and the installer eliminated or forgot to reconnect an essential sensor.Your Idle Air Control (IAC) valve could be dirty and sticking or it could be malfunctioning. Remove the IAC valve and clean it and the port with carburetor cleaner. Bring the valve to any major auto parts store and have it tested. NOTE: You can not run the engine without an IAC valve so you will need to use a different vehicle to bring the valve to the parts store.Your fuel injectors could be dirty. Your fuel filter could be dirty. When was the last time your fuel filter was replaced? It should be replaced every 1 to 2 years.You could have a vacuum leak. Look for any broken, rotted, or disconnected vacuum hoses.If the change in idle was sudden, you could simply have gotten a tank of bad fuel. If the idle problem could go away the next time you fill up.Has there been any significant change in performance or fuel economy lately. You could have a mis-fire. A dead cylinder will take away at least 25% of your power and cause noticeable problems with the idle.

That is 100% incorrect...OBD-II Honda do have an idle adjustment screw that is located on the throttle body. However, it is very easy to miss because it is covered by a little rubber grommet that is the same color as your throttle body. it is located on the top corner.Here is your problem though. Adjusting the screw will not do anything to fix your idle. Idle is computer controlled and therefore must be adjusted by a reputable mechanic, or you local Honda Service Department.

It should be on the throttle bodyremove the little rubber cap and you'll see it

well....i dont know why you are trying to locate the "idle" screw but if your trying to raise the idle the "idle air control valve" (close to the firewall on the back of the intake) i beleive has a screw that you can adjust, but if it doesn't you could replace that if you are having a problem with a low idle, however if you have a un steady idle you have cooling system issues...

NOTE:


Before setting the idle speed check the following items;
-The MIL has not been reported on.
-Ignition timing
-Spark plugs
-Air cleaner
-PCV system
-(KC model) Pull the parking brake lever up. Start the engine, then check that the headlights are off.
1. Start the engine. Hold the engine at 3,000 rpm with no load (A/T in [N] or [P] position, M/T in neutral) until the radiator fan comes on, then let it idle.
2. Connect a tachometer.
3. Disconnect the 2P connector from the Idle Air Control (IAC) valve.
4. Start the engine with the accelerator pedal slightly depressed. Stabilize the rpm at 1,000, then slowly release the pedal until the engine idles.
5. Check idling in no-load conditions: headlights, blower fan, rear defogger, radiator fan, and air conditioner are not operating. Idle speed should be: M/T 550 ±50 rpm A/T 550 ±50 rpm (in N or P position)

-Adjust the idle speed, if necessary, by turning the idle adjusting screw.

NOTE: After adjusting the idle speed in this step, recheck the ignition timing. If it is out of spec, go back to step 4.

6. Turn the ignition switch OFF.
7. Reconnect the 2P connector on the IAC valve, then remove the BACK UP (RADIO) (7.5 A) fuse in the under-hood fuse/relay box for 10 seconds to reset the ECM/PCM.
8. Restart and idle the engine with no-load conditions for one minute, then check the idle speed. NOTE: (KC model) Pull the parking brake lever up. Start the engine, then check that the headlights are off. Idle speed should be: M/T 700 ±50 rpm A/T 700 ±50 rpm (in N or P position)
9. Idle the engine for one minute with headlights (Low) ON and check the idle speed. Idle speed should be: M/T 770 ±50 rpm A/T 770 ±50 rpm (in N or P position)
10. Turn the headlights off. Idle the engine for one minute with heater fan switch at HI and air conditioner on, then check the idle speed. Idle speed should be: M/T 770 ±50 rpm A/T 770 ±50 rpm (in N or P position) NOTE: If the idle speed is not within specification, refer to Diagnosis by Symptom .



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Attached Images

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