unstable idle on vs v8

[domtas]

hi guys,

ive got this unstable idle that i cant get rid off..

i have replaced the following
ignition module
tps
iac valve
clean throttle body
clean up the earth wirings

any ideas out there i should try to get this idle much better or am i dreaming off getting a nice idle on a vs v8 due to the age of the car :hmmm:

im thinking next is to change the following
temp sensor as it seems to be worst at first start like big up and downs.
spark plugs and leads , dist cap and rotor button?
after this im out of ideas, am i wasting money trying the above?
oxygen sensor will this help?

maybe a greenfoam tune will fix it up or previous owner has done a cam change and i cant tell coz im new to commodores.

any ideas plz....

 

[hq-racing]

my first option would of been new plugs and leads.. why ya there ya can do cap n rotor..
my bet that should fix it...

 

[domtas]

my first option would of been new plugs and leads.. why ya there ya can do cap n rotor..
my bet that should fix it...

ok i try plugs an leads next.

what plugs should i be getting..standard one or platnuim one.
also with leads should i be going the 9mm or 10mm leads or 8mm leads are good enough?

 

[VrWagz1]

Also at check for fuel leaks, espicially where it comes onto the rail. I had this once and it caused a bad hunt around idle

 

[varly]

has it got a aftermaket chip

 

[dirt drifter]

vacuum leak maybe?

 

[domtas]

has it got a aftermaket chip

not that i know of.

 

[domtas]

vacuum leak maybe?

how do i go about checking if its a vaccum leak?
anyone have diagram of the vaccum lines on vs v8 manual?

 

[VPbomb]

You checked for error codes?

 

[domtas]

You checked for error codes?

yer no errors came up