az4wheeler

Without the vacuum canister i would think the vehicle would run rough as well as setting a code, if all it is is the canister whats preventing the replacement?

WYO_XJ

Need help passing emissions. I failed Hc, Co, and Nox. I have a 94 and not sure what to do

Chaoscase

What are your numbers?
How old is your catalyst converter?
Have you done a top end and injector cleaning?
How is your idle?
Have you checked for vacuum leaks?

needxj

Im right there with you. New cat/vacuum hoses and a top end clean for me. Hopefully i will see positive change and maybe all three "pass".

az4wheeler

Check for vacuum leaks. do a tune up and oil change. dont waste ur time or money on a engine clean up. run good gas 89 or higher octane. get it nice and hot for testing.

Az state cert. emission inspecter.

LeRoy90laredo

and if all else fails, ethanol in the tank will save the day.

WYO_XJ

I'll check the cat. Its getting old so I'll probably replace it and do the oil change and better gas..hopefully it works

chevynova-71

NOX is strictly controlled by the Cat on a 94! Replace the cat! i have a cat that is less than two months old. magna flow high flow cat. it is the california vehicle model. basically has a higher precious metal load. text me 602 819 3620

WYO_XJ

I'm getting a cat but don't have the tools to install it. My exhaust will have to be cut and was wondering if anybody would be able to help out

chevynova-71

you dont have a grinder or sawzall?

WYO_XJ

No. unfortunately I list a lot of my tools when I moved

Az87xj

Where you located at bud

WYO_XJ

Chandler...Chandler Blvd and mcclintock

chevynova-71

harbor freight has a tail pipe cutter for really cheap also

Az87xj

I live out in San tan valley of you wanna drive out here I will cut that ***** out for ya