my 1991 dakota has poor horse power & gas mileage, and idles high. on 1991 Dodge Dakota

starting in spring of 2008 my 1991 dodge dakota has been idling a little high,does'nt kick down after starting ( when attempting to speed up even a little it only reves up but does'nt eccelerate), I've replaced the EGR to no effect, along with the fuel pump & filter, and I have poor horse power & gas mileage. it happens every day & every time i start it, I was told that it could be /is probably due to the trans mission sticking & a dirty tansmission filter. unforunatly i don't know the diagnostic code, etc.

Asked by for the 1991 Dodge Dakota
I'd be thinking about an air intake restriction, air leak, vacuum leak, or possibly even catalytic converter restriction.

But you're flying blind by not having a diagnostic test performed. It's worth the modest investment.