gas and air ratio?
Last night after filling up with gas my 99 boxster started backfiring and if i try to accelarate it back fires and tries to stall out. This situation is very bad when car has been sitting. When starting, massive amounts of smoke comes from the exhaust until i can get the car moving(always smokes when a/c on). When i get going it hesatates very badly,backfires(espeacially when changing gears) It runs smoothly when there is no acceleration but knocks and pings around 2400-2600rpms. Please help!! One more thing. I noticed weeks back that the car was a little rough getting going when cold.
Last edited by matthewjlms986; 08-10-2007 at 03:46 PM.
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