CO2 Problem!

[nache.rm]

Hi to everybody and sorry for my poor english,

I have a problem of polution on my Suburban (09/1994) : the CO it's to high and I can't manipulate the electronic system of injection because here in France I don't have the instrument who plug on the electronic system ... and, for the instant, I don't find a garage mechanic who have it. So, the question is if it exists another solution to regulate the fuel injection in order to decrese the polution.
Thank you!
Regards, Catalin

[bres566]

Hello from Minnesota

You might try changing your oxygen sensors. I changed the forward 2 oxygen sensors on my 1999 suburban and
my exhaust was much cleaner and my fuel economy improved. Good luck.

[EKJ]

the catalytic muffeler can also be broken