Bad TPS?

[GVTalon]

I've got idle surge. This happened after I pulled the intake mani to install a direct port nitrous system. I put everything back together and upgraded to a 1G TB. I had to move the emissions soleniods and extended the vacume hoses. I fired up the car and it idled high then after it warmed up it started surgeing. I just yanked all the emissions stuff and installed an EGR blockoff, I figured if I got rid of all the stuff I wouldn't have to search for vacume leaks. Well its all back together again, I fire it up and it does the same thing, idle high then surge after its warm. So is this an indicator of a Bad TPS?

 

[larryd]

what exactly is surge?

 

[GVTalon]

Well after the car warms up, the idle begins to fluctuate up and down between 1,000 and 1,500 rpm...and doesn't stop. I understood this to be idle surge, I also understood this to be a common problem on DSM's. However whatever board I go to and post about this problem, no one knows about it.

 

[GVTalon]

Now I've read more abou surge and my symptoms indicate a bad ISC. But I already tried 2 of them. I don't know what to do.

 

[larryd]

sorry man, if I knew id help ya out.. never experienced that problem yet

 

[L2RTSiAWD]

I may possibly have a bad TPS. After I drive for a while the AFC starts to show throttle percentage even though my foot is not on the gas and the will of course rise until I've been driving for a while an it says about 3.5% throttle and idle is about 2000rpms. Very annoying.


Later,