i've changed my plugs, wires, oil, belts, it's got 2 hi flow cats, and i still can't pass, my readings are 2.4 HC Grams/mile and 26.6 CO grams/mile, can any give me any hints on whats up with my car.

also the car is a 88 T2 and the car idles good, and has no real mods, except for a cone fliter

thanks

 

Check to make sure you're Air pump is pushing air into the cats. Nonetheless, that you're air pump is active at all. Seeing as you have 2 hi-flow cats..I'm guessing you know longer have any air being put into you're cats..you can signal that as a failure almost off the bat.

 

actually i set it up where i can is just all by it's self and i put the air line infront of the other cat...

 

u should keep the mechanical airpump and ACV if u want to pass smog...

i don't know if my setup will work but I blocked off the ACV and switched to a GM electric airpump.

http://www.cabrio7.org/mods/airpump/airpump.html
http://www.1300cc.com

both have good write-ups
i followed the Cabrio7 one though, since i wanted to follow the stock ACV operation

 

Air control valve going bad is a common problem, if it doesn't work properly, and you don't want to spend 400 on a new one, you got to connect a tube from the air pump directly to the cat, I think you may have said you did that but I couldn't understand what you wrote on your second post, I have a highflow main cat and there is still a little tube where the air line connects to, also do you remember the jrats or whatever its called formula, putting 1 gal. denatured alcohol in a quarter tank of 87 octane, driving slowly and filling completly up after the test,
Send your smog results to a knowledgeable rotary comapany like mazda trix they can most likely tell you what wrong with your car

 

i'll check if the air pump is pumpin air in to the cats tonight at work, thanks everyone

 

started it up, let it warmed up to normal temps. and took the air line off the exhaust, no air.....so i'm just putting the air pump to the line tonight

dave

 

try alcohol method?

 

I pass with just an electic airpump and 3" hi flow cat. All other emissions are removed. I'm running 6 injectors, hi press fuel pump, and after market FPR, so if I can pass with that, anyone can.

 

I wish it was that easy here in Cali.