SOURCE: 2000 kia sportage ex, 4 cyl.
Yes there is a sensor that controls Fuel/air ratio.It's called a MAF (mass air flow sensor)
But I think you should have the EGR (Exhaust gas recirculation)valve checked
and The TPS (throttle position sensor)maybe dirty.
Although may things can cause this issue,I would look at the items above first.
Please rate this a blue fixya
SOURCE: 2006 sportage timing belt- how to change
Here you go, just ignore part about removing sprockets. Click on pictures for larger view.
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152801bca65
SOURCE: My 97 Kia sportage is is hesitating and stalling.
try cleaning all engine gronds and grounds on battery tray there was an issue with wiring to the mass meter and tps
SOURCE: misfire and poor acceleration in kia sportage 1999
Poor acceleration would be from the misfiring, so start there. As Ruben said, do a code scan for trouble codes. Does it misfire all the time, or only under acceleration? Use insulated pliers and pull the plugwires off one at a time (and replace) until you find the misfire. The misfire will not change engine speed when removed, but a plug that is firing will slow the engine noticeably, maybe even stall it. When you find the misfire, it may be a bad sparkplug, bad plug wire, or the coil for that cylinder.
Be careful with the plug wires. Before you begin, loosen them from plug and reinstall, so they are easy to pull off when engine is running.
Good Luck.
SOURCE: kia sorento 4x4 6CL code P0300 P0301 P0302
These are codes for misfires on #1,#2, and random cylinders.
A cylinder will also misfire from the injectors as well as the spark side. If this is a v-6, check for camshaft position sensors.
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