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.

 

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.