Failed Illinois emissions test
HELP- My '93 Touring just failed the Illinois emissions test. Both Hydrocarbons and carbon monoxide were twice the allowable limit. The car is stock with the exception of a PFS Intake. I just completed most of the reliability mods and had new plugs and wires put in this summer.
Anybody have any suggestions on how to get it to pass? I was thinking of a DP and High Flow cat next year but my MAZDA RX7 mechanic said he did not think it would pass emissions. Anyone in Illinois have similar problems? I can't imagine not being able to drive this baby!!:( |
hows your air pump? Did you change the oil before the test? Checked your vacuum lines?
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Try runnin a fuel injector cleaner before the test. If you use the blue bottle you have to finish off the tank before you test. Try STP if you need to pass soon.
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how's your exhaust smell? if it smells funny then is the air pump working? no holes or cracks in the rubber hose going from the airpump to the acv? a crack would give you those symptoms because not enough air would get to the catalytic converter at idle.
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Thanks for your replies.
The air pump seems to be functioning properly. No funny smells from the tail pipe. The car has 1800 miles since the last oil change. I was going to try an new oil change and to see if any gas additives are sold for emissions testing. The vacuum hoses visually seem o.k. from what I can tell. My boost gauge says I get great boost (about 13-14 lbs.@2500 rpms) during WOT. The Air/Fuel meter reads o.k. maybe slightly rich for a second or two during WOT. I therefore assume there are no vacuum or hose problems. Any other ideas or expiriences?? |
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