Pontiac Owners Club UK

with the highest rev achieved the gunson then allowed me to just tweak the screws until the flame was a lovely bright blue.

i need to get one of those then i paid £2.80 plus vat each plug next time i will use ebay should have done them straight away but i did the decals

My procedure for doing it without the colour tune is:

Back off the idle speed screw on the throttle linkage until it's no longer touching the throttle actuator and so the throttles are closed. Then screw in the idle mixture screw on the right hand side until the engine almost stalls at idle - will run rough. Then screw out the idle mixture screw until the revs stop getting higher. This is a small rev change not hundreds of rpm. Then 1/4 turn back in. Do the same for the left hand idle mixture screw. Then set the idle speed screw to 800 ish rpm. Not too low or the oil pressure will be too low at idle

Worth noting that if your engine stalls when you have backed off the idle speed screw that's usually a good indication the idle mixtures are not set right.

thirdgen wrote:is that technical help
tpi rules
my tpi motor used to have its moments on hot days also. so do not rule.
lol

never had problems with mine or davids
just don't touch the throttle

thanks ian i bought a color tune today it was perfect i altered it to see a change and put it back to where is was was well set up

SUPERCHARGEDGTA wrote:

thirdgen wrote:is that technical help
tpi rules
my tpi motor used to have its moments on hot days also. so do not rule.
lol

never had problems with mine or davids
just don't touch the throttle

my gta would not start from hot unless i gave it some pedal

throttle position sensor not set right or fuel sensor issue, or faulty temp. sensor maybe

still would not want to go back to carb again

I see mr Thirdgen has gone all anti thirdgen since owning a 2nd gen1

he is getting old now

i love 3rd gens i will have another one day they drive so good. i nearly ditched my tpi for a carb when it played up

both are fine when running right, both are a pain in the ring when they play up/don't run right

Mines always a pain in the ring!