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Hi,

My spec2 97 model has this exact problem. Stalling frequently whren coming to a stop and idling really roughy. Like the rpm cycles from 1500 rpm down to like 100rpm then back up over and oever and eventually will either stall or stay at about 1000rpm

can anyone suggest what i should do to correct this?

what steps are involved? you suggested cleaning the airbox? please provide some steps, i dont know heaps about cars, only a little bit

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Guest RedLineGTR

Just cleaned it a couple days ago, may of made a bit of difference but not that noticeable got a can of electrical contact cleaner, got a can for about $21 or so dollars, but beware some of the contact cleaners leave a sticky residue, had a little spray on my hand and it disappeared in a couple seconds. Went home pulled the bitch out and started spraying, spraying, spraying...oops used the whole bottle..lolz but at least i could see the color or the actual unit itself. Prop do it once in a while but wouldn't bother doing it like every oil change or something like that.

If people have idle problems as most have on these replies I would recommend some, thoe $21 is a bit of a waste of money but with some testing the engine seems to be finding the correct revs at idle & calculating air entering the system more accurately.

PS. IF you wanna use brake cleaner by all means do if it works fine, my experience with the contact cleaner was great no problems, Just choose the right one. (dicksmith guys that work there a dicks so when they have walked away, try some sprays out for yourself)

Cheers Rob

Guest TTZ32
Originally posted by paulr33

Hi,

My spec2 97 model has this exact problem. Stalling frequently whren coming to a stop and idling really roughy. Like the rpm cycles from 1500 rpm down to like 100rpm then back up over and oever and eventually will either stall or stay at about 1000rpm

can anyone suggest what i should do to correct this?

what steps are involved? you suggested cleaning the airbox? please provide some steps, i dont know heaps about cars, only a little bit

Check the AFM is actually connected:) Maybe it's faulty, also check the coolant temp sensor and connector

Originally posted by RedLineGTR

....but beware some of the contact cleaners leave a sticky residue, had a little spray on my hand and it disappeared in a couple seconds...

Yeah, the one I said Rob, FLUX OFF leaves NO residue either! I cleaned out my mobile and got it working with this stuff ;)

My AFM doesn't seem to be dirty at all ~ yet!

Idle is a tiny bit uneven occasionally but I don't think its AFM related. Most likely due to CAS and idle adjuster being messed with...next dyno session will sort this out though...more than likely

Just for comparison sake, I got some brake cleaner, cost $9 and gave the AFM a quick squirt (a couple of seconds) and it was like new.

If you are having idle probs, it may be more than jsut the AFM, check all hoses that are connected to the plenum/intake pipework, make sure none of the clamps are loose, and check all hoses for damage. Ihad a small crack in a thin piece of rubber pipe where my boost guage was connected, as well as a couple of loose clamps. Sorted these and idle problems disappeared. Also you could try cleaning your AAC valve, as these sometimes cause problems.

it may be worth doing a search about idle, as a few people have had similar probs.

  • 2 months later...
Guest GTSFOUR
Originally posted by RedLineGTR

PS. IF you wanna use brake cleaner by all means do if it works fine, my experience with the contact cleaner was great no problems, Just choose the right one. (dicksmith guys that work there a dicks so when they have walked away, try some sprays out for yourself)

Cheers Rob

Well As A "DickSmith Dick" I find you Harsh generalisation offensive. But AS you are a fellow skyline fanatic i might just let it slide. Guys the best thing you can get is Electrolube Ultrasolve cleaning solvent for these reasons

1. It is exactly the job it is designed for

2. "contact cleaner" also lubricates as it is made for cleaning switches which can affect the way a AFM works

3. cheaper stuff will damage plastic if allowed to sit or used in great amounts

4. Its only $17 so why not

  • 3 months later...

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