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Car Forum / Honda Cars / March 2008Unburnt gas smell from the exhaust
Every morning when I start the cold engine of my old Honda, especially in the winter, the car started hesitantly and I can smell the unburnt gas. To keep the engine running, I have to keep pressing the gas pedal until rpm can itself sustain at 2k to 3k. When this car is new, the process took about two minutes and I don't need to press the gas pedal, now it takes five minutes or longer in cold days. The car acts normal after the five minutes of my morning blue is over. Also, the emission is somewhat blackish in that first five minutes. The emission turns to normal white steam after the rpm hits 3k then drops to normal 1k instantly. Does anyone know what causes the problem, and is it expensive to fix? Thanks. > Every morning when I start the cold engine of my old Honda, especially in > the winter, the car started hesitantly and I can smell the unburnt gas. To [quoted text clipped - 6 lines] > then drops to normal 1k instantly. Does anyone know what causes the problem, > and is it expensive to fix? Thanks. buy some new spark plugs. then install them. >> Every morning when I start the cold engine of my old Honda, >> especially in the winter, the car started hesitantly and I can smell [quoted text clipped - 9 lines] >> > buy some new spark plugs. then install them. maybe a dist.cap and rotor,new plug wires.... and run some dry gas for a few tankfuls. it would be nice to know more about his Honda is,;year,model,mileage,etc. Essential,really.  SignatureJim Yanik jyanik at kua.net > Every morning when I start the cold engine of my old Honda, especially in > the winter, the car started hesitantly and I can smell the unburnt gas. To [quoted text clipped - 6 lines] > then drops to normal 1k instantly. Does anyone know what causes the problem, > and is it expensive to fix? Thanks. ========================= I see this was posted on Psychic Wednesday . . . . All we know: It's not a Honda motorcycle. I guess we don't care which side the steering wheel is on. Do a tune-up run a bottle of fuel injector cleaner through it and stop warming it up on the driveway. Also search Google for 'italian tune-up'. Start it, adjust the mirrors, and DRIVE. 'Curly' > Every morning when I start the cold engine of my old Honda, especially in > the winter, the car started hesitantly and I can smell the unburnt gas. To [quoted text clipped - 6 lines] > then drops to normal 1k instantly. Does anyone know what causes the problem, > and is it expensive to fix? Thanks. Hmmm, Time for a tune up.
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