Okay basically, there are no air leaks for sure... TPS is functioning perfect. If the car is off it will read 0, floor it, it will read 100. It's weird, when i first start the car up, it will come down to a normal idle of around 900... Then if I blip the gas or start drivng it will idle at 1500 from then on whether I'm rolling or stopped. For some reason it seems like the throttle stays barely open after I start driving... I don't know what is going on, freescan says my throttle is at 1% with my foot completely off the gas. Only time it stays at zero is when i first start it. The idler screw is backed out to the point where it is not touching because i thought that could be the problem but its not... Also, I have it programmed for a 52mm TB also but that obviously didn't help. Could it have something to do with the TPS??? I'm 99% sure I installed it correctly... I know it must be something simple but I need to fix this ASAP!!!!! Anybody???

 

Pre-sleep TTT, I need to fix this before 12:00 tomorrow please help me!!!

 

What we did earlier didn't help it?

 

Nope... It idles fine when you first start it but after that it idles at around 1500... if I blip the throttle sometimes it will go down to like 1300 but never to normal idle. Weird huh...

 

Have you checked the TPS voltage after you've blipped the throttle? See if that is reading high as well, then see if you can adjust it between .4-.5V.

Also have you eliminated the chance that it could be the throttle cable binding? Disconect the cable and blip it manually and see if it still does it.

Hope that helps!

 

TTT

 

darn....thats what I was gonna say

 

I'm going to try disconnecting the cable right now... I'll be back in 10 or 15 mins.

 

It is exactly what you guys said (I think). I disconnected the throttle cable and blipped it from the throttle body and started idleing high. Then I kind of pushed the part that you blip back and it went back down to normal idle... So how do I fix this now???

 

First of all I would adjust the throttle stop so that the linkage is resting on it. The blades catching in the bore is not the proper way to set a stop.

I'll bet you simply need to set the proper TPS voltage at closed throttle. My TB behaved exactly like yours when I first installed it. Loosening the screws on the TPS sensor and rotating it back to lower the voltage and retightening fixed my problem. Some people need to slot the TPS sensor to dial it back enough. There was enough slop on mine that I didn't need to do this.

 

Sounds like a sticking TB - the blades may be rubbing against the walls causing it to not close unless forced. Take a look inside (engine off) and see what you see.

-Alex

 

Okay so if those were the problems how do I fix them? I don't think the blades are sticking but if that were the case how would I fix it... I'm going to try to move the TPS back without making the holes bigger... I need solutions please not more problems? I want the car to be running right when I have to take it to school in 3 hours...

 

Measure the TPS voltage at ignition on, engine not running, then at startup, and then after the throttle has been moved and allowed to return. You should get the same readings at all times and it should be in the range of 0.20-0.90V. Most people find that 0.50-0.67V works best, but in theory, that shouldn't make a difference. If you are getting 1% TPP, I'd be willing to bet you are getting 1.00V or more in the closed postion. Either the blade movement is restricted, or the TPS sensor needs to be slotted and adjusted.

You need to take the voltage measurements for people to help you.

What brand is the 52mm TB?

 

I don't have a laptop until friday to use freescan with and I don't have a multimeter either... damn. It's a TPIS 52mm TB (stock bored out). The blades are at an angle at 0% but they are closed (I think that is how they should be). What I don't quite understand is how does it idle correctly upon startup (meaning TPS and throttle are both in the correct position) even if I turned the car off with it idling high??? I'm sure you know what is happening Fred. I'm studying for an exam for another 15 minutes and then I'm going to see if I got more responses then I will try to troubleshoot. Thanks for all those that responded already!

 

I had this same problem with my prelude... Ya i know hondas are completley different, but lube up the hinge part of the blades inside of the tb and the problem should go away. Sounds like the blades are a bit stickey... my $0.02