The engine rpm's fluctuate both while driving or

SOURCE: Car won't start

k is there power to fuel pump? yes,,, check grounds..... NO check relay only get kia relays for main and fuelpump since o2s run on the same relay,..... if relay is good suspect comp.... mine has same problem with no power to fuel pump i have now traced problem to ecu sux but at least it has a new fuel pump and relay lol.....

SOURCE: Hesitates upon acceleration & will not maintain a steady speed

i had found a problem with a kia rio. it was saying tps sensor but after a couple of hours and alot of cursing it turned out to be the maf mass air flow sensor. these are expensive so i suggest that you take it to a kia dealer to have it tested or find someone who can do it for alot cheaper

SOURCE: 2004 Kia Rio Stalling while slowing down or

check mass air meter and iac motor your machanic should be able to help also tps can cause this

SOURCE: Kia Sportage 93171K

evap purge valve fault is your p0443
p1693 is manu. controlled aux input output fault
p1693 is a code for an open or short to ground for the check engine light
does it light up when key is on? if so then it is a left over code from some previous repair attemt
the evap code wont prevent starting
check for broken timing belt
check for fuel in tank and that it has proper fuel pressure

SOURCE: When I'm driving my kia sedona 2.9 automatic is

The throttle position sensor on the intake area and the kickdown switch are both suspect in this. If your pushing hard enough to shift down it could be that sensor is faulty, If not the change in position is to fast for the faulting position sensor. Those are the cheapest things to replace, The other maybe the transmission modulator that tells the unit to shift down.