idle

[mat82284]

i installed a tb a week ago. i set the tps to 1v i couldnt get it any lower too hard. i did drill out the washers on the tps too and the lowerst i can get is 1v. my idle when im not moving is 800 but when im moving and in nutral it sticks at 1700 i cant get it lower is there something wrong? or is the tps still the problem? i waited a week hoping it would get better but hasnt. anyone have any tips on ajusting there tps to get it to 0.93-0.98???

 

[mat82284]

anyone know????

 

[Red2000GT]

Yeah you need to get it BELOW 1V. Drill out the screw holes another notch larger and get it set down.

 

[mat82284]

ive drilled them to the max if i drill more it will be the plastic. it already started to melt and stuff didnt want to break it. how do i clean the iav? i think that might be a problem too cause the rpms come down slow?

 

[Red2000GT]

Double check for a vaccuum leak around the tb as well,that will cause some weird idle problems too.

 

[mat82284]

i dont hear a vacume leak but how can you check for it with your fingers? or spray something?

 

[Red2000GT]

Pretty hard to say,I've heard of using keroseen and it will cause the idle to raise when you find the leak but that's just not safe.

 

[mat82284]

ok i looked at my tps and its actually at .99 i didnt touch it cause i thought it was at 1.3 but its below 1v and its still doing it. anyone know how to cheak for vacume leaks? i must have one somewhere. cause its still idleing at 1300-1400 but only when im moving wile in nutral but if i stop at a light it takes about 1 sec then drops to 800 maybe this is normal? i never checked before? if not then it has to be a leak or a bad iav? how can i clean the iav?

 

[forpit2000gt]

when did you clean the K&N last? reoil? you either have a leak behind the MAF or the MAF may need cleaning. I use some type of spray clener to check for leaks. Usually use brake cleaner, use plastic tube and direct around the mating surfaces. if idle changes, that is where it leaks. does not require much spray.
Does the Forb racing TB have a screw on it?

 

[mat82284]

i couldnt find an idle adjust screw on it. the k&n was cleaned about 2000 miles ago. and the maf about 800 ago. i cleaned them before. ill have to get some break cleaner and check out spaying to see if i see any leaks.