1988 PORSCHE 924 FAILED MY EMISSIONS WHAT CAN I DO?

  • Tiny
  • miss.devault
  • 1988 Porsche 924

1988 Porsche 924 4 cyl

my car failed it emissions. The paper said it failed because the CO2 emissions. Is there any things that I should check that could help this?

Friday, May 29th, 2009 AT 7:40 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

As combustion efficiency decreases, the oxygen content in the exhaust rises and carbon dioxide CO2 falls. An engine that is running at a nearly ideal air/fuel ratio of 14.5: 1 will show about 14.5 percent carbon dioxide and 2.5 percent oxygen in the exhaust. CO2 readings of less than about 13 percent and oxygen readings greater than about 4 or 5 percent indicate poor combustion efficiency. This translates to an over-rich or over-lean air/fuel ratio, poor compression, or an ignition problem

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Friday, May 29th, 2009 AT 8:01 PM

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