idle high

[7007v6buickman]

i replaced all vacuum lines. i replaced IAC valve. i replaced EGR valve. put header gaskets welded driver side header. rebuilt turbo all new seals gaskets. my rpm is 900 guess they said it supposed to be around 650-750. i don't know what else to do. any help would be great thanks

 

[earlbrown]

Does your throttle cable and cruise control cable have free play in them.


and I almost feel dumb for asking this..... but what is your IAC reading (and TPS) on your scantool at idle fully warmed up?

 

[rmar]

Hell i thought u tossed a bearing this morning....? Did we move past that or ?

http://www.turbobuick.com/forums/threads/threw-a-bearing.414555/

 

[Chuck Leeper]

Tune tool readings????

 

[7007v6buickman]

@rmar I have an 87 GN & 878 Turbo T
My GN threw a bearing now i have to get the Turbo T running asap

 

[7007v6buickman]

i have a got it lower now think it was erg or the gasket just replaced it with the one on my GN since its down now it bounces between 700-800.
my readings though. Still think somethings wrong
AF 05
L8 38-42
INT 124-133 bounces around
BL 142
CLT 192
ATS110
RPM 700-800
IAC 43
CC 135-142

 

[earlbrown]

open your throttle blade a little and bring that IAC down some

 

[Nascar83Fan]

The rpm's bouncing between 700 to 800 until warmed up isn't really out of the norm.

 

[DavidM]

Like Earl mentioned, bringing the IAC down a bit will quiet that purring kitten a bit. You forgot to mention TPS. TPS/IAC go hand in hand. If you adjust one, you will have to readjust the other.

I keep my TPS at .42 and IAC in the teens.

 

[7007v6buickman]

ok gonna try that let you all know how it go thanks so much fellas

 

[7007v6buickman]

i can't get it to go below 30 i don't know whats wrong. my cars running like shit. i changed plugs, wires, IAC, PCV, throttle body gasket, vacuum block and gasket,turbo, all seals, fuel pressure reg, fuel filter, &header gaskets, all fuses are good. i put my coil off my GN which is good on there no difference. i don't know what else to do besides AFM and fuel pump and injectors and chip. i have another AFM changed it but no difference.

 

[Raeban]

It has been asked a few times but I didn't see the answer. What is the TPS reading at your new IAC reading?

 

[7007v6buickman]

.42