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Rough/jumpy Idle Issue...

Marneros

By Marneros,
in General Maintenance

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Marneros Newbie

Marneros

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Hey guys sorry to make another post about a rough idle i have been using sau site for a long time now and have gone over many topics about the rough idle situation and none sounds like mine...

Anyways heres my problem

I have a r34 gtt and have had for about 2 years now.. recently i had a new fuel pump installed. 500cc injectors.. power fc z32 afm and plugs gapped to 0.8mm

And i just replaced the entire acc idle control system.. as the bolt for the idle was in shreds..

Anyways after installin mew idle/acc the car has gained alot more power.. but my issue is the car starts fine with a cold start and i have issues when its above 40c in water temp. I have to give it abit of gas to get it started.. thats my first issue

And after it starts cold or hot i get a rough idle it jumps between 700rpm to 1300rpm on idle and when slightly acclerating it just jumps like when i go to 3000 rpm it will jump between 2300rpm and 3000rpm but after a little while sorts itself out.. another thing i noticed was when i put the aircon on the car seems to idle fine.. same as when i turn the lights on?? Sounds weird i know...

But if the car is hot and say i turn the lights off or the aircon the car will go to a low idle and start to stall.

Aorry if this issue as been resolved before but i cannot find it in search..

Also i did have a high idle about 1600rpm before all the work above was done. And seemed to run fine and atart at any temp.

Any help is greatly appreciated

Thanks guys!

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https://www.sau.com.au/forums/topic/465562-roughjumpy-idle-issue/
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