couple things needing addressing

[tmosser]

:hi:

I just had a couple questions/concerns about my evo ix.

First off when I first start it and let warm up is it normal for the afr's to be rich at first (10's) than gradually increase to 14.7/14.3 flux once warmed up?

Than secondly, This problem has exsisted since I bought the car.. Whenever crusing at a steady speed (usually happens at highway speeds) if I give it more throttle to merge or pass etc. than let off to 1/4 or very light throttle it will start jerking and go piss rich. untill I give it gas again.. Ive looked over all lines etc just cant find out why. I went back to a perrin intake (uses stock maf scale) and that didnt fix it. Its just really annoying when Im driving somewhere and everytime I try to let off the gas it starts jerking. I get the "WTF is your car ok" look alot from passengers.

It is tuned by shane, but I plan on getting a retune for e85 sometime this spring since my e85 tune is quite old. (currently on a pump gas tune also done by shane last march)

mods,

perrin intake/perrin foam filter
megan o2 housing
dc test pipe
greddy ti-catback
pte 1000cc's
wally 255
crushed ix bov (did it even when it was un crushed)
nesei licp
ams fmic
ams mbc
Pretty much it.

If anyone is in the mankato area I can show you what im talking about.
Or I will be in shakopee tomorrow afternoon