How do I control my idle?? I am so lost. Modded 2005 S2000

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Chase9605
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Joined: Sat Feb 04, 2017 11:58 am

How do I control my idle?? I am so lost. Modded 2005 S2000

Postby Chase9605 » Sun Nov 19, 2017 9:01 am

Like the title says. I do not know how to control the idle speed. The car is a 2005 Honda S2000. I have a Platinum Plug in Pro ECU. I just did some major work on the engine. It was previously tuned with RDX 440cc injectors, OEM intake manifold and 69mm throttle body. I changed out the throttle body for an 80mm, intake manifold is now a much larger Skunk2 and injectors are now id1000's. I can get the car to start. When it starts the idle goes up to 2.5k RPM and stays for about 5 secs. It then tries to slow down the idle speed but when the RPM drops, it immediately begins to surge. from 500-3000k RPM. I will mention that i have an IACV off an RSX (brand new). CTS reads correctly and IAT is an AEM. Having issues scaling the AEM. I need a good data sheet for that one. I am lost when it comes to messing with the fuel tables and IACV settings. It seems like the throttle body is so large and I have not told the ecu that I replaced the IACV with another type. I tried entering settings from the DC5 IACV and it didnt really make any difference. I am I missing something?

JimKden
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Joined: Wed Jan 12, 2011 2:28 am

Re: How do I control my idle?? I am so lost. Modded 2005 S2000

Postby JimKden » Sun Nov 19, 2017 12:05 pm

Plug the air off to the Idle valve and start the car. Adjust the warm idle to about what you want. Adjust fuel so it doesn't surge. Set the idle valve settings so it closes. Then open the air to the idle valve and work on getting the idle valve to control the idle speed.

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HaltechMatthew
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Re: How do I control my idle?? I am so lost. Modded 2005 S2000

Postby HaltechMatthew » Thu Nov 23, 2017 12:24 pm

Sounds like it needs to go to a tuner, especially if you are lost with making adjustments.


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