[Peakn]

Hi, yesterday after driving to to shopping centre, while I was looking for parking my idle jumped to about 2k and wouldnt die down, since then whenever im driving and change gears the revs falls very slowly and it stills idle at 2k rpm. This morning I took off my IACV and FITV and cleaned them both aswell as my T/B but nothing has changed. The only way I can get my idle to go down is to quickly rev it to about 6500rpm and then let go, and it will go down to about 1.5k rpm but as soon as I drive again, It will go back to idling at 2k rpm.

I am not sure what else It could be as I have also checked that the accelerator cable is not snagged and I tried putting in my friends MAP sensor but that didnt work either. I have a VAFC II and I am not sure if resetting the ECU would erase any tuning configuration.

Any help would be greatly appreciated..

Jeremy..

 

[nsantore]

Trying bleeding the coolant. It's at least worth a shot, as maybe you have air in the system that's throwing off the IACV. This happened with my old Integra. It was idling at like 3,000 RPM, and all it needed was to have the coolant topped off and bled.

If that doesn't do it, pop the hood and run the motor (warm, after drivingt) while you listen careful for a vacuum leak somewhere. Blip the throttle from in the engine bay and listen for any whooshing or whistling. Any hoses that seem loose, tighten the clamps up. Check them for dry cracking or holes.

As a side note. Be careful driving the thing if it's revving up hard on cold startup. You can do damage to the motor or cause a gasket to fail if it revs up high on cold start. 2K isn't bad, but keep an eye on it.

-Nick

 

[Peakn]

thanks mate, i'll give it a go

 

[asnydes]

Did you find out what it was?

 

[95scteg]

wd 40 your throttle cable near the throttle body

 

[tdcmotorsports]

sounds like your throttle cable is sticking

 

[integra-evan]

Another cause might be a bad throttle position sensor. That can throw off the idle...happened in my Honda Passport.

 

[milano2kdc2]

This has happened to me too, I also cleaned the IACV and TB, no change.

What happened was that my IACV itself went bad, so I swapped it for a different unit, fixed it right there.

 

[Thrasher865]

Another cause might be a bad throttle position sensor. That can throw off the idle...happened in my Honda Passport.

That would almost certainly throw an engine code. Did you not have a code when this happened?

 

[Killme]

That would almost certainly throw an engine code. Did you not have a code when this happened?

False... faults in TPS sensors are often caused by a dead spot (excessive carbon) in the TPS which is usually located were you commonly hold the throttle at. This problem is common on cars that are often driven at say... 3500rpm on the high way for many miles. Your TPS is a potentiometer, so is very easy to test but personally I don't believe that would be the issue.

It could possibly be due to a vacuum leak but there are so many different possibility's. You would be best by taking the car to someone who knows and understands Acuras.