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EMISSIONS

Tiny
SHERMANRAMSEY
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 4WD
  • AUTOMATIC
SO I FAILED EMISSIONS. IDLE READING HYDROCARBONS 438 STANDARD IS 220. CARBON MONOXIDE 2.20 STANDARD IS 1.20 EVERYTHING ELSE PASSED WHATS THE EASIEST WAY TO FIX PROBLEM? ADJUST IDLE SCREW MAYBE?
Wednesday, July 20th, 2011 AT 10:51 PM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Could be as simple as a o2 sensor, plugs, air filter or an oil change. All these contribute to the emissions.

Roy
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Wednesday, July 20th, 2011 AT 10:53 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the air pump and also the catatlytic converter-
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Wednesday, July 20th, 2011 AT 10:55 PM
Tiny
SHERMANRAMSEY
  • MEMBER
  • 6 POSTS
O2 SENSOR NOT CHECKED YET OR AIR FILTER NOR PLUGS DID OIL CHANGE AND CAT CONVERTER PASSED
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Thursday, July 21st, 2011 AT 2:11 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What was the CO2 and O2 readings
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Thursday, July 21st, 2011 AT 5:58 AM
Tiny
SHERMANRAMSEY
  • MEMBER
  • 6 POSTS
Hydrocarbons idle reading 438 idle standard should be 220 carbon monoxide idle reading 2.20 idle standard should be 1.20 air system n/a I passed everything else loaded readings were 111/220 1.18/1.20 thats all the info I have sorry
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Thursday, July 21st, 2011 AT 6:33 AM

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