Vt idle drops after warmed up

[Justbadger]

New iac. I've never touched factory set screw or tension of the cable. Any ideas

 

[Justbadger]

Dropping to about 450.500 has choked once n almost stalled

 

[harrop.senator]

Look for vacuum leaks.

 

[lout]

have you given it a chance to learn the idle
from memory there were different iac for different configurations
is this a genuine holden part or repco one part fits all

 

[Justbadger]

have you given it a chance to learn the idle
from memory there were different iac for different configurations
is this a genuine holden part or repco one part fits all

It's a GOSS branded part probably a leak somewhere.. been doing it for a while now..

 

[knos]

It's a GOSS branded part probably a leak somewhere.. been doing it for a while now..

dooing it since the iac replacement or before? if after, id check the oring that comes with it , last one i got seemed smaller then the one i took out so could be that not sealing?
if its been prior it could be any of the hoses on the throttle body or plenum..

 

[Justbadger]

dooing it since the iac replacement or before? if after, id check the oring that comes with it , last one i got seemed smaller then the one i took out so could be that not sealing?
if its been prior it could be any of the hoses on the throttle body or plenum..

Cheers for the info.. it was doing it before. Changing the iac now it still shitty after warm-up. But once warm the start up goes to like 2k revs then drops to almost stall but catches with another light rev to 7 hundred where it stays. I'm going through the hoses now and they seem fine could it be o2 sensors I'm bout to rip them out for a clean

 

[knos]

Cheers for the info.. it was doing it before. Changing the iac now it still shitty after warm-up. But once warm the start up goes to like 2k revs then drops to almost stall but catches with another light rev to 7 hundred where it stays. I'm going through the hoses now and they seem fine could it be o2 sensors I'm bout to rip them out for a clean

i wouldnt think so.. maybe a dodgy tps... have you cleaned your throttle body or plenum..? sometimes there is cracks inthe vachoses and under heat they open as they are hard to see by eye.
also could be a crack in the intake boot.

 

[Justbadger]

i wouldnt think so.. maybe a dodgy tps... have you cleaned your throttle body or plenum..? sometimes there is cracks inthe vachoses and under heat they open as they are hard to see by eye.
also could be a crack in the intake boot.

Took tps off n it has play n depending on where u screw it up depends on the revs lol.. gunna get a new one cause when u put it full clockwise n lock it up idle sitting at 2k n wants to drive itself.. leave it to the left more n it idles low..

 

[Lex]

Took tps off n it has play n depending on where u screw it up depends on the revs lol.. gunna get a new one cause when u put it full clockwise n lock it up idle sitting at 2k n wants to drive itself.. leave it to the left more n it idles low..

Do you have the plastic adaptor?