start problems and white smoke smell like gas \???


Asked by Apr 26, 2013 at 06:56 PM about the 2004 Nissan Sentra 1.8

Question type: Maintenance & Repair

i have replace plugs many time but still every morning i smell like gas come from the
mofler and the car is hard start i dont have idea what is that

5 Answers


Run some good, probably pretty expensive injector cleaner through there. Then go from there.


All cars start with a rich fuel mixture. They run for the first minute in a open loop condition which means that the O2 sensors are not controlling the fuel mixture. --- If you are smelling gasoline much worse than when other cars start, you may have a fuel injector leaking and filling a cylinder overnight.


That is a good possibility as well. My thoughts were dirty injectors in general, not atomizing fuel and bad incomplete combustion.


Thanks guys I'm go to try to clean the fuel injectors but I still have miss fire in all the pistons

Michael Haward

Do not kno w

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