Full Size K5 (1969-1991) GMT415 (1992-1994) Tech Discuss any and all full size K5 general tech topics here.

Emissions help

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Old Jan 25, 2006 | 06:29 PM
  #1  
codereddanger84's Avatar
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Default Emissions help

hey guys im new here i have a 93 full size blazer and it failed emmisions bad

Load Load Std Idle Idle Std

(HC) 727 220 2386 220



(CO) 13.61 1.20 12.01 1.20





Those are the results i got from the test where should i start. About three months ago i replaced the plugs, plug wires, cap, rotor, ign. module, blaster coil, fuel filter, and fuel system treatment. any help would be great thanks.
 
Old Jan 25, 2006 | 06:52 PM
  #2  
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Joined: Jul 2005
Posts: 177
From: Atlantic, NC (eastside whats crack-a-lackin!)
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Default RE: Emissions help

Does it still have the original catalytic converter on it?? If so it might be time for a new one. Also, next time make sure you have a oil change done shortly before you take the test. Believe or not this will help some. You might wanna clean our your egr valve also, and maybe do a seafoam treatment.
 
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