maroonls1z

Alright, this is a dumb question and i know it so try not to give me ****. If you turn off adaptive idle parameters is the idle suppose to hold steady or will it surge a bunch

ctd

iTrader: (1)

There you have it, this needs to correct as does BRAF before manipulating other tables. The LTFT's are off as well, nothing wrong with that if the VE table is tuned correctly, yours is not.

Generally idle instability is caused by over rich condition.

If you look at the timing when the idle dips, it's stable @ 20*. Go to your main timing table & copy the 400rpm column into your idle 0 & 400rpm idle timing table columns. This will act as under speed idle timing, because it has not gone into adaptive idle as you are rolling.

maroonls1z

Well my stit are now +/- 0.2 so my braf table has to be just about correct but ill add more to my ve and mess with timing as you suggested

maroonls1z

Well just for completeness sake the issue was the bolts backing out on my FAST manifold

gagliano7

Sucks when your chasing your tail over something mechanical trying to fix it with the pcm.
At least you found your problem and i am sure you learned some tuning in the process.

BREWS02WS6

iTrader: (6)

Thank you for coming back and posting this. I'm about to start tweaking my tune due to this same issue, but will check all my bolts first.

Midnight02

iTrader: (8)

I'm glad you posted this as well. I've been fighting the same issue to no avail and at least now I have something else to check out.

Darth_V8r

iTrader: (4)

FAST intake bolts are notorious for this. I used star-washers on mine to bite into the bolt head a little bit and help prevent backing out. Never had an issue with vacuum leaks. FWIW. Spring washers would probably work also

gagliano7

How does an intake that cost $1000 dollars not have a good bolt lock washer setup to stop this from happening. The stock bolts with the rubber washers never have any problems backing out unless the washers are bad. I don't own a fast intake but it really pisses me off that something that over priced has problems like this.

Darth_V8r

iTrader: (4)

IN general, I'd agree with you, except on maybe a first generation which is really still a sort of "beta". But after receiving customer feedback, yes, the situation could and should be addressed with a simple kitting change