Originally Posted by Dbedner

Okay It’s been about a few months for me with this same reoccurring problem and I can’t take it anymore!!

right around 3k in mostly 1st and 2nd gear the car WILL NOT rev up smoothly whatsoever, it gets this jerking hesitating that I can’t pin down. Yesterday it also stalled while pulling up to a stop sign which was the first time that’s happened and then didn’t wanna start up smooth after.

I’ve done new plugs, coils, injectors less than a year ago and I’m just at a lost.

also idk what this points to but while it was idling at start up I noticed after I would bump the driver side fuse box the car would start cutting out and bog what does this meannnn

Originally Posted by Chuck S

I'm not aware of any possibility for a S2000 to pass a mandatory emissions test without a catalytic converter.

-- Chuck

Originally Posted by RolanTHUNDER

Have you tried whacking your MAP or a replacement to rule that out? Stalling when coming up to a stop could point to a clogged IACV. Those can be cleaned out and will be good to go but in rare cases can malfunction permanently. The fuse box thing is a concern...investigation needed.

P.S. That Tomei exhaust must be wild
Just exhaust mods won't necessitate a tune but you can get more out of them if you do so and you can ensure that the car isn't running too rich too often

Originally Posted by B serious

Its very easy to do, as long as there is no visual inspection or gas analysis.. A typical "plug in" emissions test like the one they do in a bunch of states is easy to fool.

OP...is there a check engine light on?

Originally Posted by Dbedner

Absolutely love my Tomei!

I think I figured my problem at least temporarily,

I ended up taking my intake off and doin a partial clean on the throttle body, as well as doing a little Map clean and it’s running a lot better. Although I never really figured out why it was doing that when I bumped the fuse box very weird