Need Help!!!! Car won't pass emissions....

[SSR Mx-3]

So I went to get my car inspected yesterday and I was given sheet that said I have excess carbon monoxide levels. (I was told to hold a rev for about a minute and a half by the emissions worker, so I held it at 2,600rpm. Could this affect how much CO my car produces? To me it would make more sense that I would produce more emissions while giving the car more gas?) Anyways, Does anybody know how reduce CO emissions?

F.Y.I. My car is a 1992 1.6 SOHC RS with intake, header, and a full cat-back exhaust (Magnaflow High-flow Cat, Magnaflow resonator, and Magnaflow muffler). It currently has 181,xxx miles. It runs perfectly and I still get 33mpg in the city. I change the oil every 2,500-3,000 miles with full synthetic oil. Also the spark plugs and wires were replaced not even 10,000 miles ago at the local Mazda dealership with OEM NGK products.

[SSR Mx-3]

Also, I replaced the battery last fall with an Optima Yellow Top.... If that helps any

[npspears]

well I'm not really sure, but you could always clean out the EGR valve and pcv valve. If you go the homepage and look on the left or the online manuals those are very helpful.

[mudflap13]

when we had emissions down here and we could nt pass a trip to the local pharmacy is all we needed run your tank till low then go get some alcohol bout a gallon four of the big sized rubbin alcohol will do but if possible fill up with a gallon or two of racin alcohol the idea is have just enough gas left in the tank when mixed with the alcohol it will still run its also good in helpin burn water out of your gas tank any questions hit me up

[mudflap13]

DO NOT AND I REPEAT DO NOT getthe green stuff just plain ol white/ clear kind

[fowljesse]

I recommend 4 ounces of Acetone per 10 gallons of gas, and be sure the car is hot, when tested. I got my GS to pass emissions this way with NO cat, and Oregon is strict. If you do Isopropyl Alcohol, do the 90%, so it has less water in it.

[mudflap13]

i was just coming back to say get the 90% stuff when fowljesse beat me to it


altho i wouldnt recomend using too much acetone due to the fact its very harmful to plastic components and most rubbers it may work but use very small doses like he sujested

[fowljesse]

It's a toss-up between the 2, because Isopropyl is corrosive to the metals.

[mudflap13]

i do concur either way just use enough of the mixture to get u to the testers and to the nearest gas staiton the fill'er up althe way to dilute and in this case i wouldnt feel bad if i did run out of gas that way u know its all out lol let us know how it goes

[SSR Mx-3]

Alright. I won't be able to go until late next week because school is starting up, but I will definitely let all of you know the outcome of everything. Thanks for the responses! I appreciate it!

[fowljesse]

Try 1 oz each of 90% Isopropyl, and Acetone in 5 gallons of gas (put the additives in, and then the gas), and check your air filter. I wonder if the Cat, being in the back, doesn't get hot enough. Also, high flow ones don't work as well.

[SSR Mx-3]

Try 1 oz each of 90% Isopropyl, and Acetone in 5 gallons of gas (put the additives in, and then the gas), and check your air filter. I wonder if the Cat, being in the back, doesn't get hot enough. Also, high flow ones don't work as well.

This definitely worked for me. A mixture of both did me just fine! Thanks for everybody's help.

[fowljesse]

Yay! Thanks for posting the result!

[Daninski]

No ones commented on why carbon monoxide is produced in the first place. It's a result of incomplete combustion. Sounds like a cat to me, EGR takes care of No does it not. Try running a fuel injector cleaner through as well. Your car should be passing with no probs.

[mudflap13]

thanks for posting your results any time u need help lemme know