FMIC installed, now wont idle!

[XEQTOR]

Just want to know if anyone else has had idle problems AFTER installing a FMIC.

Car was running fine until it was installed. Im gunna try to reset the computer and se what happens but any other ideas?? Dont really want to get a HKS Idle stabiliser.

[rbs13]

air leak? check hoses n stuff.

[WHITE R32]

id say a vacum leak aswell.....

[Al]

did you attach a aftermarket bov with the fmic? This too can cause alot of problems.

[Jay95R33]

Check that the AFM is plugged in

I did that and was wondering why it wouldn't idle !!!

J

[XEQTOR]

Thanks guys, I triple checked all hoses clamps and the AFM, and everything appeared in good working order. my boost gauge seems to be operating in the normal vacuum and boost levels -20InHg and +14psi .

It does have a BOV. Maybe it needs retensioning?? Might be too soft and opening perhaps?????

[Al]

Put the old one back on to test if that is the problem

[Blitz]

Hmm Brad it certainly sounds like a leak, have you checked your vaccum hoses as well as cooler piping?

[YBSLO4]

did you connect up the vaccum nipple that used to run to your stock piping Without it the ECU can't get a vacuum reading from the piping.

[rob77]

Make sure all the silicon hoses use to join the pipes are tight and someone didnt put a screwdrive through one of them.

[XEQTOR]

Gunna try changing the BOV back to the standard bypass shit valve today and see what happenes then. I noticed on the way to work last nite while driving with the headlights off for a change that it didnt do it as bad!?!?!? Maybe the battery has gone again, but seems to coincidental for that, but will keep it in mind.

Blitz>>All vaccuum hoses check ok. cars due for a service soon(100,000km), and a set of cam gears and a PFC, so might be a job for UAS while they fit , tune and service.

YBSLO4>>It was one of the first vaccuum hoses to be plugged on, as its from the Greddy boost control solenoid thingy

Rob>>All silicon hoses appear to be ok.

[YBSLO4]

When you say it doesn't idle... do you mean it searches? Like it bounces constantly from around 400-800? If so i had the same problem, its caused by a pressure leak. Can happen if you have a leak in your exhaust, a leak in your intake piping or either your O2 or TPS sensors are bung. It will definately be a problem with your cooler piping... the problem is it can also be casued if you have used the factory 90 degree rubber bend or 60 degree rubber bend that if you have pushed the piping into it to far that it overlaps the bend it restricts flow and will cause the same problem. SO basically i know you have checked it but it would pay to remove most of the joins and do it again making sure its 100% sealed and that all pipes are flowing properly. When i found the cause of mine it was because i accidently pushed the piping to far into the rubber bend and it had about 1.5cm gap for air to pass through :S When i fixed it i picked up 2.4psi and saved me a lot of fuel and really really bad lag....

[XEQTOR]

That sounds like a great idea YBSLO4!!! Doint that tomorrow! that could be the prob!!! Cheers!!!!!

[YBSLO4]

No problems dude, hope it all goes well. If it doesn't fixc it let me kno i have a few other things ya can try.

[Cubes]

When I had my FMIC fitted my AFM decided to do strange things.

When started there was heaps and heaps of black smoke coming from the rear and it sounded like it had huge overlap cams in it.

Removed the AFM, slapped a R33 AFM on for the dyno run, put my AFM back on and it was ok?!?!? Not sure what happened there but something is a little dodgy with my AFM.

[Talej]

hmm so far I haven't had any problems. My car is idling rough but it was doing that before. I have noticed that when it is cold it idles higher than it did before but is ok after about 30 seconds

[YBSLO4]

Also a goo didea to change ya spark plugs if ya havn't done so dude, a cooler will make ya car run rich, and in turn will blacken up the plugs making it idle shity. Good idea to do if ya have all the other stuff exhaust, filter etc. cos your probs definately due for them.

[Sil8ty]

XEQTOR; Let me know how you go, as i just finished doin my coola on the wkend, with the same prob.. Did a vacuum leak test, but no leaks... Sounds like it has a killa set of camshafts in it though ... Can notice a fair bit of difference even when it isn't running too smooth which is a good sign i guess..

[Edge]

Joel did you reset your ECU while doing swapping afm on the dyno run?

[Cubes]

nope..