I've replied to countless threads on here when people complain that their car failed their local smog test just because of too high of a HC, CO, CO2, O2 reading. I've caught some flack from people that just refuse to believe that my solution works. So feeling victorious today after passing my most recent vehicle I wanted to post up the results in hope that it helps some of you guys... If this isn't proof I don't know how else to prove it.

Vehicle in question: 1990 Honda Civic 4x4 Wagon

Current unfixed issues with said vehicle: Bad cat (smells like rotten eggs), bad o2 sensor (occasional engine check light). Bad valve cover o-rings, oil around plugs causing missfire. Plenty of things to make this car go way over allowable limit.

Steps taken to make it pass: I left my house and drove it around in 3rd gear @ about 3,500 rpm for about 15 minutes to make sure the cat was up to operating temp. Stopped at the gas station and poured 2 bottles of HEET (gasline antifreeze) into 1/2 tank of reg. 87 oct. gas. I pulled the neg. battery cable for 30 seconds to clear the check light. Then I drove 2 blocks to the nearest testing station.

The results speak for themselves, I doubt even a brand new car off the showroom floor would have results this clean.


@ 793 rpm @ 2451rpm

HC ppm
Limit 750 750
reading 218 76

CO%
Limit 1.00 1.00
Reading 0.07 .56

CO2%
Reading 14.6 14.1

O2%
Reading .34 .61


Just thought I'd share... This won't help pass visual test of course, but if you just can't seam to pass the sniff test this works great. The worst car I have passed to date was a CRX w/ DOHC ZC running on a pg7 ecu (very rich) with a gutted cat, and straight pipe setup. A word of caution though, do not exceed 1 bottle per 5 gallons gas, as I have had issues getting the car to start up on anything more... This is due to the amount of alcohol in the fuel, making it a bit harder to ignite. By the way, this isn't a one time fluke, I have been using this trick for about 10 years on atleast a dozen cars. I have a habit of buying cars @ auction and reselling them for $$, so I always seam to have a POS car that needs to pass the test.

 

wouldn't this also work with a bottle of rubbing alcohol?

 

I have no idea about rubbing alcohol, principle is the same, but I atleast know that HEET is designed as a gasoline additive... And it works, so why mess w/ a perfect formula

 

alcohol worked for me

 

heard some old guys used to use rubbing alcohol. it would smoke like crazy for 30mins, but after that it would burn so clean you would think it was a hydrogen car.

 

im gona have to try this

 

Or you could be like my friend and slam your car as low as it will go on coilovers, drive to the station, and just have them write you an extension since they can't drive your car over the rollers

 

do you have a picture of what this product look like? I'm hoping it's available in Canada.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AK_CRX &raquo;</TD></TR><TR><TD CLASS="quote">The results speak for themselves, I doubt even a brand new car off the showroom floor would have results this clean.


@ 793 rpm @ 2451rpm

HC ppm
Limit 750 750
reading 218 76

CO%
Limit 1.00 1.00
Reading 0.07 .56

CO2%
Reading 14.6 14.1

O2%
Reading .34 .61</TD></TR></TABLE>

Ah yes, good ol' Alaska. 750 HC ppm? holy crap!

I thought your numbers were a little suspect, so I pulled out a recent smog check paperwork of mine to confirm my suspicions. Well, check this out, this is how I smogged my 95 Civic EX with a rebuilt D16Z6 in San Francisco, California.

@ 1890 rpm @ 2056rpm

HC ppm
Limit 92 57
reading 21 13

CO%
Limit 0.55 0.54
Average 0.06 0.05
Reading 0.39 0.29

CO2%
Reading 14.9 14.7

O2%
Reading 0.0 0.0

We also have a NO category, which I won't post. Point is, your HC and CO regulations are far less strict that California, that's all I'm trying to point out. to you for smogging your car in this unique way, us Californians can only dream of using such methods

 

I just passed my car in northern california using G2P or 'gauranteed to pass' I failed twice and after the second time didn't change anything besides adding the g2p and it worked

 

ALL STATES HAVE DIFFERENT SMOG REGULATIONS... Your readings in Alaska, would fail in California. California has to be one of the most strictest states in the US. Look at your Limits compaired to hushypushy.

 

I love Ft. Collins CO.. i could convert my car into a coal burning steam engine and they could care less as long as i paid my $28 yearly registration fee.

 

Never said it'd work in Cali! You guys are flat out screwed if it's not running mint.

 

That 200+ HC # at idle fails in TX, too - guess how I know...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jb2wheels &raquo;</TD></TR><TR><TD CLASS="quote">That 200+ HC # at idle fails in TX, too - guess how I know...</TD></TR></TABLE>

Fails here too.

The only foolproof way I know is to get an address in a county that does not smog and go there to get the car done.

Get a PO box and have a bill sent there like cell phone or something.....that will be
enough to prove residency in most cases...OR a friends address or relative and have some mail sent there.....

WALLAH!!

 

So I tried to use it before my smog check. I had 1/2 tank of gas, dummped 2 bottles of HEET, had my cat super hot.
I passed, just as I did 2 years ago with the same results. It turns out that in my case, I don't think HEET had any chance to get used during the test as with my coilovers, my car sits slightly forward, and my gas pick up never gets the chance to get at the 5L of gas. My fill is 36L! Keep that in mind if you're trying to run on Methanol. Good idea though...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jb2wheels &raquo;</TD></TR><TR><TD CLASS="quote">That 200+ HC # at idle fails in TX, too - guess how I know...</TD></TR></TABLE>

Well at least there's ONE good thing about Bastrop county.

 

I failed mine the first time, here in WA, i added denatured alchohol, pretty much ethyl alch, then it passed

 

seems like really good advice but california sucks. i failed 3 times with each result getting better. first time i failed GROSS POLLUTER. second time i failed i fixed a shorted oxygen sensor connection, it was shorted by the shielded ground touching the signal wire. i find out the timing was retarded to 6 degrees, and it almost passes but fails due to incorrect ignition timing and high Nox readings at higher rpms, not to mention i also used a gallon of denatured alcohol to a full tank of 91. So last try i corrected the ignition timing to 18 degrees and it totally fails, the emission raised all the way to double what it should be, so diagnostics told me my car has either a shaved head or a high performance head gasket, raising the compression way past stock meaning the car wont pass at its proper ignition timing. so the solution was to retard the timing to about 8 degrees and i found out it passed cause it cut the results it half due to compression. its not a gross polluter its just not stock. the test only guys here were pretty stupid not allowing me to test the car with the head in its condition, telling me just to change out the head blah blah blah, they said its illegal. and i just said i bought it like this! see salvage title


Modified by mitsubishiv5 at 11:26 AM 10/12/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fireant &raquo;</TD></TR><TR><TD CLASS="quote">

Well at least there's ONE good thing about Bastrop county. </TD></TR></TABLE>

Holy crap, I used to live in bastrop/smithville/rosanky... Your damn right, that might be the only good thing about it!!! Well, that and the pecans...

 

-mitsubishiv5
do you have a swap?

just curious.. need to get smoged and were same county.. where did you go?


Modified by hatcht9x at 12:10 AM 10/13/2008

 

hey guys. Would adding the gasoline additivies help lower the NO(ppm) of the smog test? and any advices to what would help lower the NO would be greatly appretiated

 

i'm keeping this in mind for whenever I move..

 

Yup Coastal Gast Line Antifreeze works as welll...