m getting ready to buy a 98 5spd with some bolt ons i/h/e, drove car, but CEL light comes on for tps knock sensor and car is runing lean. guy said tps is new and needs adj, but not sure about knock and lean. when i test drove it didnt hesitate or bog but he said i have to turn it off then back on and thats when it started bogging and hesitating. Could I have more problems then the CEL or is those simple sensors??? thanks guys