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[rustym95]

well do what you wont im just saying, it swing both way with out a pin(adjuster).

[JamesV6CDX]

well do what you wont im just saying, it swing both way with out a pin(adjuster).

Yes - but again, this would open up the flaps, and allow in air - which would increase idle

[rustym95]

well thats what they did to mine and it stopped it trying to cut out, the pin was worn and closed it off completly and knoked out the settings to the potentiometer. after it was adjusted by half a turn idle was right again only out by 0.5mm roof.

[tigers_gonads]

if the revs are hunting, i'd have a look to see if you have a air / vacume leak first before you start throwing money around 

get yourself a can of carb / brake cleaner and spray it around any air / vacume pipes / joints / icv 

if the revs rise then that is where your leak is 

[TheBoy]

If anyone has buggered around with the throttle stop, this needs to be adjusted so throttle is 100% fully closed, before any further work is done.

I have never seen this adjust/wear themselves, so if its incorrectly set, its most lively somebody with a severe lack of understanding of injection systems has been playing

[whitebullet]

If anyone has buggered around with the throttle stop, this needs to be adjusted so throttle is 100% fully closed, before any further work is done.

I have never seen this adjust/wear themselves, so if its incorrectly set, its most lively somebody with a severe lack of understanding of injection systems has been playing

i'll have quick look myself and if i cant see anything out of place then it will go to Daz(loo-knee) so he can have a butchers at it

[rustym95]

If anyone has buggered around with the throttle stop, this needs to be adjusted so throttle is 100% fully closed, before any further work is done.

I have never seen this adjust/wear themselves, so if its incorrectly set, its most lively somebody with a severe lack of understanding of injection systems has been playing

its 99% and 1% for the potentiometer. if the potentiometer is at 0 it should be set at 0.5, so the potentiometer is on the settings, cause of potentiometer fault is roof idle, incorrect timing ajustment out, stalling from high to low revs, and were on the throttle stopper, adjustment to the throttle is recomended after 4years or if it shows signs of wear. refenence from GM vauxhall germany.

[dbug]

If anyone has buggered around with the throttle stop, this needs to be adjusted so throttle is 100% fully closed, before any further work is done.

I have never seen this adjust/wear themselves, so if its incorrectly set, its most lively somebody with a severe lack of understanding of injection systems has been playing

its 99% and 1% for the potentiometer. if the potentiometer is at 0 it should be set at 0.5, so the potentiometer is on the settings, cause of potentiometer fault is roof idle, incorrect timing ajustment out, stalling from high to low revs, and were on the throttle stopper, adjustment to the throttle is recomended after 4years or if it shows signs of wear. refenence from GM vauxhall germany.

Eh?

Ditto!!! Whats a "roof idle"??

[JamesV6CDX]

If anyone has buggered around with the throttle stop, this needs to be adjusted so throttle is 100% fully closed, before any further work is done.

I have never seen this adjust/wear themselves, so if its incorrectly set, its most lively somebody with a severe lack of understanding of injection systems has been playing

its 99% and 1% for the potentiometer. if the potentiometer is at 0 it should be set at 0.5, so the potentiometer is on the settings, cause of potentiometer fault is roof idle, incorrect timing ajustment out, stalling from high to low revs, and were on the throttle stopper, adjustment to the throttle is recomended after 4years or if it shows signs of wear. refenence from GM vauxhall germany.

Sorry, I've just edited my post - I didn't think "eh" was very polite.

That said - I am really struggling to get my head around what you have written. It may be because I don't understand the writing style, but -

Surely, at idle, the flaps must be FULLY closed, with the only air entering the plenum coming from the ICV, which is ECU controlled?

Can you go into more depth regarding the parameters you mention and the units in which they're measured?

Do you also have a link to the article you refer to, and can you confim if it's Omega specific?

[Kevin Wood]

Do you also have a link to the article you refer to, and can you confim if it's Omega specific?

I'd like to see this too. You seem to be inferring that the throttle stop should be set to give a specific reading from the throttle pot.

My understanding is that the throttle stop is set for a fully closed throttle but with no tendency to "stick" in the bore, and that the ECU will calibrate the throttle pot to give a 0% reading automatically.

I have encountered several cars where this setting has been messed about with and in call cases it has been idling poorly.

Kevin

[Xplicit 2.0]

ok so im not gonna get invloved with this too much - i'm not all to mechaniclly minded anyway, that and im not in the mood for a debate hehe - but this sounds like something that could solve a problem i have with my miggy... every now and then my miggy idles at well over 1k... i have had the ISCV off and cleaned it etc but this has not done the trick... could i be that the throttle is not fully closing as to why i am getting high/erratic idling??

[Bent valve]

If anyone has buggered around with the throttle stop, this needs to be adjusted so throttle is 100% fully closed, before any further work is done.

I have never seen this adjust/wear themselves, so if its incorrectly set, its most lively somebody with a severe lack of understanding of injection systems has been playing

its 99% and 1% for the potentiometer. if the potentiometer is at 0 it should be set at 0.5, so the potentiometer is on the settings, cause of potentiometer fault is roof idle, incorrect timing ajustment out, stalling from high to low revs, and were on the throttle stopper, adjustment to the throttle is recomended after 4years or if it shows signs of wear. refenence from GM vauxhall germany.

Eh?

Ditto!!! Whats a "roof idle"??

I think he means 'ruff idle'

[rustym95]

the potentiometer is set to 1 on the control board, as 0 is full throttle, there is a two way resister switch when the throttle is moved  towards the right there is the opposite going the other way, as 1 is normal running and 0 is full throttle the timing is set to advanced setting, if off set causes the timing to be out on idle, the adjuster can move past closed and upset the potentiometer as the setting is being held by the potentiometer and not the stop pin, causing damage to the potentiometer.

[TheBoy]

Can you provide the TIS reference to that, so I can take a look

[rustym95]

its on vauxhall germany web site under engine code.