hi, 1st post on this forum, sorry if its been asked many times b4

my 94 celica has just failed mot on emissions only. garage reckons it may be the cat >>
results were
fast idle

co = 4.25% FAIL
hc = 124ppm PASS
lambda = 0.89 FAIL

2nd fast idle

co = 3.52% FAIL
hc = 119ppm pass
lambda = 0.90 FAIL

natural idle
co = 0.34 pass

now i've just fitted a k&n induction kit, could this mess up emissions?i know the co levels are way off and the lambda is prob worse. also is there anything i can do to get emissions down enuff eg. fuel additives etc.

any help would be greatly appreciated.

cheers

nick

there is some stuff you can put it thats used to pass emissions, you can put some of that in and go back.

-Supersprynt+Sep 20, 2004 - 10:10 PM

IDK exactly, theres a bunch of them just go to any auto parts store and look for Emissions Test Passer.

I've never had to do an emissions test but I've heard that higher octain gas helps. Correct me if I'm wrong please cause I'm no expert.

Cataclean is a regular used product, methanol based cleaners also supposedly
help with emissions, did you replace your lambda sensor, this can also cause the problem since its operating out of range. Cataclean by the way is only available on
cable shopping channels over here.