4g93gdi ac idel help

nightman22 · Postby **nightman22** » April 7th, 2015, 12:24 pm

good day tuners, im having trouble with d idel on my cedia lancer when I turn on the ac. it drops to 400 and sometimes it cuts off when I accelerate.
Does anyone know what part controls the step up for the ac?
any advice will be helpful, thanks.

trapstar · Postby **trapstar** » April 7th, 2015, 1:41 pm

[quote="nightman22"]good day tuners, im having trouble with d idel on my cedia lancer when I turn on the ac. it drops to 400 and sometimes it cuts off when I accelerate.
Does anyone know what part controls the step up for the ac?
any advice will be helpful, thanks.[/quote

Fuel pump

nightman22 · Postby **nightman22** » April 7th, 2015, 7:19 pm

I already changed d pump

trapstar · Postby **trapstar** » April 7th, 2015, 8:07 pm

An throttle body trust me they work hand in hand

nightman22 · Postby **nightman22** » April 7th, 2015, 9:57 pm

I also changed d throttle body bro i also tried air flow sensor and pedal sensor and injectors

nightman22 · Postby **nightman22** » April 8th, 2015, 7:31 pm

Any other solutions

chosen1 · Postby **chosen1** » April 8th, 2015, 9:36 pm

you can check your idle air control valve (it may need cleaning)

also check the egr (if you have one) as it too may need cleaning

nightman22 · Postby **nightman22** » April 9th, 2015, 7:37 am

Someone told me dat but i dont know where that idel control is. a mech told me this engine dont have that part.
Thanks bro

nightman22 · Postby **nightman22** » April 10th, 2015, 9:41 pm

Anybody

deivid · Postby **deivid** » June 11th, 2015, 5:00 pm

actually these engines do have stepper motor type iac....its a six wire type

nissan4life · Postby **nissan4life** » June 12th, 2015, 10:19 am

nightman just as trapstar said fuel pump,throttle body but there is also the egr that comes with the gdi engines.
There 's a post from raybic on how to clean intake and block off egr. This recirculates exhaust back into the chamber. NOT a good idea if you ask me.
This is my next step as my car sometimes cuts off with ac on but only in hot sun.

I dont think gdi carries a iacv,never came across it.
deivid if you could enlighten us, where is it located and can it be serviced.that would be great

rollingstock · Postby **rollingstock** » June 16th, 2015, 1:57 am

Straight throttle or upwards curving 4g93gdi?

The IACV is right under the throttle body valve opening. Remove the intake hose and it is underneath the TB, the egr valve is a silver metal hose running under the TB.

Look for raybic post on here, not going to regurgitate the same info, the entire intake manifold has to be removed and cleaned.