1998 auto LS<BR itxtvisited="1">intake/headers/cat/exhaust<BR itxtvisited="1">last tune up 15k ago, new wires, new plugs<BR itxtvisited="1">last oil change just 300 miles ago mobil 1<BR itxtvisited="1"><BR itxtvisited="1"><BR itxtvisited="1">Hello guys, I need a answer within 8 hours, im at work now and need to drive home 40 miles....<BR itxtvisited="1"><BR itxtvisited="1">I was comming off a ramp going 40 or so, slowed to 25 then accelerated and the car began to stutter and make sounds like boom boom boom... low sound though<BR itxtvisited="1">then the CEL flashed, now the cel has been on due to a front 02 sensor... but now it flashed.<BR itxtvisited="1"><BR itxtvisited="1">First thought was its the tranny ..!! crap<BR itxtvisited="1"><BR itxtvisited="1">But anyway i was close to a gas staion, he said he had no time to look at it but it was a MISFIRE....<BR itxtvisited="1"><BR itxtvisited="1">so then i drove the car to work (1 mile from station) half way there i got to above 40 and the car worked like new... issue was gone.... turned car off, started it... worked fine and CEL was NOT FLASHING...<BR itxtvisited="1"><BR itxtvisited="1">any ideas? and how soon should i fix this issue??<BR itxtvisited="1"><BR itxtvisited="1">thanks guys!