How to Adjust idle RPM for a 2003 honda accord. some people were talking about a screw on the throttle body. but I can't find that screw. How do you go with adjusting this and where to find

Sounds like the throttle body may need cleaning. You could also have a vacuum hose leak. Most throttle bodies doesn't have an idle screw.

There are two coolant lines that connect to this Honda IAC to help quiet the operation of the valve. The part number for a OBDI 1992-1995 Honda Civic Idle Air Controller is 36450-P28-A01. While the OBDII version of this valve is 36450-P2J-J01, and the two units are very similar in design and execution. The EACV or Electronic Air Control Valve is a big part of maintaining your Honda Civic idle. If you've checked your IAC and your Honda still suffers from a surging idle, check your FITV. This Honda Idle Air Controller or IAC is under the throttle body and incorporates into the throttle body passages o locate your Fast Idle Thermo Valve, remove the intake snorkel and locate the FITV beneath your throttle body opening. If your SOHC engine is still having problems, check our guides above on how to check your FITV as well as your IAC. To check this operation, remove your air intake pipe and use your fingers to plug the passages in the lower left hand corner of your throttle body opening. If your idle surge does not go away, unplug your Idle Air Control valve and if that stops your idle surge, your IACV must be replaced. Follow our instructions on how to replace your Honda Civic Idle Air Control Valve. Need to raise your Honda Civic idle or having problems maintaining idle? You can adjust the base idle by unscrewing or screwing in the Idle screw on your throttle body. This screw allows air to bleed into the passages on the backside of your throttle body, as shown above. To learn how to adjust Honda Civic idle speed, you will not need to remove anything. With a standard screwdriver, simply locate your throttle body and Idle screw.

TRY REPLACING YOUR PCV VALVE

First, you shouldn't adjust the idle. If the idle isn't correct, that means there is an issue somewhere - not that the idle needs to be adjusted.

There isn't an adjustment screw. To adjust the idle, you will need to move the TPS (Throttle Position Sensor) forwards or backward. To do this, you will need to remove the tamper proof bolt and replace it with one that can be loosened and tightened.

The issue is most likely the setting at which you idle throttle is set at. When you come to a stop, your brake system takes power, and if the idle speed is too low, then the call for power will stall the engine. To fix this, look for where the throttle cable connects to the throttle body. Where it connects will be a screw that you can turn that will change the angle of the throttle plane. This is called a set screw, so be sure you are not turning a screw that holds the throttle assembly together. The screw most likely has a spring in between the head of the screw and the throttle plane. To adjust this properly, turn the engine on with the hood open. Keep the engine on and adjust the screw left or right until the RPM indicator points right above 1000 RPM. A good idle speed for a SUV is 1200 RPM.

For the engine RPM problem, you probably have a vacuum leak (cracked hose, bad PCV valve, intake plenum or manifold gasket, leaking brake vacuum booster, etc.).

Some Honda engines are not equipped with bleed valves for the cooling system. If you would like to know if yours was originally equipped with one and where it is located, you will need to say which engine your Honda is equipped with.

Sounds like a low idle. adjust idle to a higher RPM by tighening the nut and bolt to the throttle body from the gas pedal. It is reccommended that you get it inspected and read the ucu or computer for a code this will tell you the exact problem, but will not tell you to adjust throttle body to up idle.

near the throttle body there is an adjusting screw(flat head) for air fuel mixture, it's on a deep cavity sometimes with a cover, adjust counterclockwise will increase the idle.

I had the same problem with my honda. On the throttle body there is a screw that controls idle speed. If your idle speed is around 800-1000 rpm in neutral, tighten the screw a quarter turn each try until the idle speed is around 1500 RPM. Did this stop the idle?

THE DISTRIBUTOR WILL CAUSE THIS PROBLEM IN A HONDA TRY A KNOWN GOOD ONE .