vacume leak? Need help! thanks guys

[crash72682]

88 rx7 convertible n/a - When I start the car(when the engines cold) It revs then drops a litlle, then revs...like a vacume leak but when the car is warm it idles fine. Do you know what I should check first, or what you would do to fix it. I heard that one vacume leak can drop it 30 hp or so, and that would explain why my car is a little on the slow side. Thanks guys.
Matt

[Soyo]

I don't have an answer for you but does someone make a better vaccume thing or something, lately I see a lot about how fixing all the vaccume crap in the 7's makes the faster and idle smoother

anyone know anything about this?

[J-Rat]

Originally Posted by crash72682

88 rx7 convertible n/a - When I start the car(when the engines cold) It revs then drops a litlle, then revs...like a vacume leak but when the car is warm it idles fine. Do you know what I should check first, or what you would do to fix it. I heard that one vacume leak can drop it 30 hp or so, and that would explain why my car is a little on the slow side. Thanks guys.
Matt

Probably a TPS issue coupled with the Accelerated Warmup System (affectionately known as the Acclerated Wear-out System).

I highly doubt its a vac problem, or it wouldnt idle normally when warmed up.

Jarrett