I have a 1999 Kia Sportage that I just purchased about a month ago. Since then one of the cylinders has misfired and I had to fix it... now my check engine light is on again. I went to advanced auto and got 4 different codes, my mechanic told me the most important was p0343 which i'm told is for the camshaft sensor. Now my sportage will run at first but when at a stop light / sign it does not move or go above 1000 rpm....you have to have it in neutral reeving it up for about 10 minutes, horrible I know. But my point is - i've been reading about people who have the same problems with the sportage - but come to find out when they replaced the camshaft sensor the problem was not fixed until they replaced the crankshaft sensor. My question - if I just replace the crankshaft sensor, and the camshaft sensor later, will my car run fine??? Please help I need to know what to do!