on my audi TT when i reset my ecu i have to turn the key to the on but not really crank it...for the throttle bodies to recalibrate first...maybe its the same. cept on the audi u can hear a high pitch buzz coming from the throttle and when it goes away you can then crank it over.

 

That doesn't matter on the S2K (it's not an over-engineered German ...).

The ECU is recalibrated after ~2-3 miles of driving. But you still shouldn't have any weird driving behavior while it's relearning the long term fuel trim maps. I'm not sure what your problem is, but I don't think a tech day will cure it.

Ryan

 

Take it to either John (viets2k) or Todd Marcucci from Marcucci motorsports. I am sure they can fix it in no time.

 

ooohh yeah, i forgot about John, i'll PM him now

 

it's better to text/call him as he is on the road most of the time...if you don't have his number pm me and i will give you John's number

and if you want Marcucci to take care of your car, you will have to pm him.
Thanks.

 

it's not fully recalibrated after 2-3 miles...

 

Define "fully". IIRC, the long term fuel maps are built over a 2 mile loop. Of course, they are constantly modified since they are built using a running average.

Regardless, none of this should impact driveability to the point where you would notice.

Ryan

 

"fully" as in would pass emissions, i figure by that point everything is good to go

 

Hmm, low-rpm stumble/bog/hesitation...

Any mods under that hood? The most common issue causing such behavior is too much hot air being sucked in to the intake. If your intake is stock, try building a radmat.

Another possibility is that you could have some oil gunked up in the intake tracts if you've sucked any through the PCV. A treatment with Seafoam or similar might help.

It's easy to check spark plugs - pull them out and make sure the contacts are clean and they're gapped properly.

Check your coolant level.

 

thanks Elistan, i do have a K&N intake,i'll try your advise later