2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Failed HC

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Old 03-12-02 | 03:11 PM
  #1  
Cwaters's Avatar
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Unhappy Failed HC

So this time I only failed on HC. blew a 226 out of 181 allowed.
O2 sensor is new, oil & Air filters &oil are fresh, plugs are ok, timing & idle are right-on.

I'm getting new plug wires..

Thoughts?

Cory
Old 03-12-02 | 03:21 PM
  #2  
I wish I was driving!
 
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From: BC, Canada
Yep.
Methyl hydrate in the gas tank, and don't worry, use a good ratio of it.
Try changing the fuel filter.
Sean
Old 03-12-02 | 03:33 PM
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Originally posted by scathcart
Yep.
Methyl hydrate in the gas tank, and don't worry, use a good ratio of it.
Try changing the fuel filter.
Sean
what's Methyl Hydrate?
Old 03-12-02 | 03:43 PM
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if i'm not mistaken, it's alcohol (ethylene?)

try some rubbing alcohol (I think)
Old 03-12-02 | 03:43 PM
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You guys have it easy, we allow 168. Well mine only spits out 22.5 ehehe

www.geocities.com/tmak26b/emission2002.jpg
Old 03-12-02 | 03:48 PM
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Cwaters's Avatar
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Originally posted by tmak26b
You guys have it easy, we allow 168. Well mine only spits out 22.5 ehehe

www.geocities.com/tmak26b/emission2002.jpg
your link dosn't work.
does your car REALLY only spit out 22.5 ppm????
how did you DO that?

CW
Old 03-12-02 | 03:58 PM
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There are fuel additives that claim to lower emissions (at least while their in your fuel).
Here's one, but if you go to any large auto parts store, they should have something similar.
http://store.yahoo.com/rodi/ch05063.html
Old 03-12-02 | 03:58 PM
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Ya, rubbing alcohol can work wonders, just don't lay on it while it's in the tank, it burns differently.

Check to see is your ACV is ok, and the cat is getting a good supply of air.
Old 03-12-02 | 04:23 PM
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Cwaters, copy and paste the link, or go to location and just hit enter.

Yes thats the right number. I did the test TWICE in 2 years. Came up with numbers that are close

www.geocities.com/tmak26b/emission2000.jpg
www.geocities.com/tmak26b/emission2002.jpg

Keep my car stock, good maintance, it will pass emission easily. I dont even have to use rubbing alcohol or gun it a lot. I did the emission test hwen it was 15 degree
Old 03-12-02 | 04:46 PM
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I wish I was driving!
 
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Methyl Hyadrate is just a common form of alcohol. It burns to form mostly water vapour. In fact, it is CH3OH, which has a very low amount of carbon molecular number (compared to gasoline @ C6H14). It burns in standard conditions almost completely clear and very very hot.
Adding it to the gas tank does good things. It overall lowers your emissions (this is what all car dealers put in used cars that fail emissions). As well, it bonds to any water in your fuel system (which gasoline normally repels, and allows to form rust pockets) and allows the water to be burnt off.
Gasoline system water remover is just methyl hydrate, don't pay for special packaging.
But, to run just straight methyl hydrate would require about twice as much air to the same amount of fuel, so with a normal ECU map, you can't nail it without worry.
As well, alohol is very hard on the rubber in a stock fuel system. This means all hoses and injector o-rings. Running 40% methyl hydrate once a year would do nothing, but if you did it every tank, the fuel system would fall apart.
Just add a good sized bottle to the tank with a gallon or so of good gas and drive to the place without nailing it (different air fuel ratio), and you should pass. Don't be stiongy on the methyl though!!!
Most car shops will carry drums of methyl hydrate (for this specific purpose), and if you can't find it, try a drug store.
Sean
Old 03-12-02 | 04:51 PM
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damn my georgia emissions test is coming up soon.... you know the one where i go up to the back of my car and say "damn, that smells like ***." and walk away satisfied

Justin
Old 03-12-02 | 05:24 PM
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Originally posted by RX-7Impreza
damn my georgia emissions test is coming up soon.... you know the one where i go up to the back of my car and say "damn, that smells like ***." and walk away satisfied

Justin
sounds better than MY GA test
Old 03-12-02 | 06:26 PM
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Plus are "ok"?&nbsp What does that mean?&nbsp I'd suggest changing the plugs also...



-Ted
Old 03-12-02 | 06:30 PM
  #14  
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From: Savannah, GA
Originally posted by Cwaters


sounds better than MY GA test
i didnt notice that you live in atlanta, do they test city wide??? i know we dont have emmissions in savannah, and are you gonna come to the savannah meet this saturday in savannah during st patrick's day
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