Car stumbles

[Caboose73]

I have a 99 2.4l i installed the 2.3 ho intake manifold three days ago and now when i drive it the car stumbles and i can here my exhaust poping on light acceleration but only between 1700-2000 rpm everything else is fine/idle/wot/cruising what could it be a vacuum leak?my tps?

[Caboose73]

Bump any ideas ?

[[ion] C2]

Yep, vacuum leak or TPS. But not sure. Get HPTuners.

Considering you just made a mod, it's most likely something you did with that mod that caused it. You may not have plugged one of the holes, or there's a torn hose or something somewhere. The manifold may not be sealing against the head, check whatever gasket you used and the manifold bolt tightness.