Why are the emissions on my mazda too high at idle

1999 MAZDA 323
140,000 MILES
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ZX10RICK
  • MEMBER
  • 1 POST
my car was in for its MOT, and failed on the emmissions, as the CO2 level was at 0.82, but the max is 0.50 at idle speed. this is the maximum in Ireland, could you tell me what would be causing this please?
Jan 12, 2012 at 8:08 PM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
Needs oil change. Check spark plugs and air filter. Use fuel system cleaner.

What were the CO and HC readings?
Jan 13, 2012 at 12:51 AM
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