REVscene Automotive Forum
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REVscene Automotive Forum (https://www.revscene.net/forums/)
-   Vancouver Auto Chat (https://www.revscene.net/forums/vancouver-auto-chat_173/)
-   -   Help passing aircaire (https://www.revscene.net/forums/610508-help-passing-aircaire.html)

underscore 04-01-2010 07:00 PM
Quote:
Originally Posted by !LittleDragon (Post 6890198)
I thought you can buy fake OBDII ports that spat out the OK signal.
That would be more generic, but more expensive than simply having fake sensors sending the right signal values to pass.

some_punk 04-01-2010 08:36 PM
just have the codes tuned out by someone like racing greed, or jawanda motorsports. there are a few LS1 tuners around here. As for the cats just get a catted-y, it sounds nicer with cats anyways, and gut that if you want but have the rear O2's there just to pass visual

underscore 04-01-2010 08:45 PM
^ I'm wondering, is that legal for them to do? Cause really, the entire aircare system is a joke if you can legally go get the codes removed and then only have to pass a visual inspection.

Volvo-brickster 04-01-2010 08:53 PM
Quote:
Originally Posted by some_punk (Post 6890709)
just have the codes tuned out by someone like racing greed, or jawanda motorsports. there are a few LS1 tuners around here. As for the cats just get a catted-y, it sounds nicer with cats anyways, and gut that if you want but have the rear O2's there just to pass visual
o2 sensors work on voltage , but they constantly fluctuate don't they?

if you remove the cats , how does a tune or code keep the O2 functional while keeping the CEL from going on?

i have an off road H but just ended up having the rear 02s turned off

some_punk 04-02-2010 10:38 PM
Quote:
Originally Posted by Volvo-brickster (Post 6890764)
o2 sensors work on voltage , but they constantly fluctuate don't they?

if you remove the cats , how does a tune or code keep the O2 functional while keeping the CEL from going on?

i have an off road H but just ended up having the rear 02s turned off
THe front O2s constantly switches from .1 to .9 volts. The rear O2s are at a more constant voltage to tell the computer that the cat is working. And from what I know, a tune is used to turn off the codes so that it wont set off a the CEL or SES. and there are at least 2 O2s on every car now for OBD 2 1 pre-cat and 1 post cat.

CorneringArtist 11-07-2010 04:33 PM
Bumping an old thread since the question is kinda relevant.

So I'm taking my car to AirCare for the first time, and this time around it'll be tested for sure (my last car blew blue smoke). Any tips to prep the car for the test (ie. driving the car around beforehard to get it hot)? Also, my idle is kind of rough, but it's barely noticeable if the car is warm, unless the car is shut off and restarted. Do they ever shut off the car during the test?

Thanks.

PuYang 11-07-2010 04:38 PM
Quote:
Originally Posted by hchang (Post 6886842)
I don't know what this does, but my parents do this everytime before they have to aircare, and have never failed. So I assume it might help? Correct me if I'm wrong.

Basically they fill up about half a tank of 91 gasoline and drive it for a stretch on the highway then proceed to aircare.

Thoughts of how this works? Or even if it works at all?
I was told by someone that if you fill up your tank with any gas 87, 89, 91 etc etc, WITH 10% ethanol, and drive it for a while, it can help alot.

i only add gas at 1 gas station ever, and all of them (87, 91) have 10% ethanol already. so im not sure if other gas stations have ones without the 10%.

supposedly, they failed aircare, and then went and added 10% ethanol gas, they passed with flying colors xD

EmOne 11-07-2010 05:37 PM
Quote:
Originally Posted by jlenko (Post 6889694)
Since the OP's car is an OBD2 car... it doesn't matter WTF he does to 'pump air' or methyl hydrate or whatever crap you come up with. WTF some of you idiots are smoking... geez...

If there's a Check Engine light on - it's an instant fail. No cats will also fail the visual inspection, as previously noted.

So.. put some cats on, put some oxygen sensors on so the light goes away... or do the illegal and fabricate some metal boxes that LOOK identical to cats to pass the visual, and have someone with a programming tool disable the OBD2 codes in your PCM for the O2 sensors. Then the MIL lamp will go away, and you'll pass the OBD2 plug-in check. As long as your OBD2 monitors are set, you're good to go.

Aside.. why the fuck are you running no cats? Run a good high-flow cat instead, you don't lose that much power (really!). And you might live another 75 years to enjoy this world you didn't kill...
but but but....if you fill up half a tank and drive for a little bit it will pass bro!



































I fucking hate revscene sometimes.

fliptuner 11-07-2010 10:44 PM
Oil change, plugs, air filter, 40 psi in the tires and a hard drive beforehand. That's given the car is in decent mechanical condition to begin with.

CRS 11-07-2010 11:12 PM
Quote:
Originally Posted by PuYang (Post 7176930)
I was told by someone that if you fill up your tank with any gas 87, 89, 91 etc etc, WITH 10% ethanol, and drive it for a while, it can help alot.

i only add gas at 1 gas station ever, and all of them (87, 91) have 10% ethanol already. so im not sure if other gas stations have ones without the 10%.

supposedly, they failed aircare, and then went and added 10% ethanol gas, they passed with flying colors xD
How does this make any sense...?

PuYang 11-08-2010 07:57 AM
^i have no clue... all i was told was they added 10% ethanol, and did nothing else, and passed.

was hoping someone here would enlighten me xD

some_punk 11-08-2010 11:12 AM
husky gas station's gas has 10% ethanol. The ethanol is supposed to help clean up the cats.

lexluthor09 11-08-2010 01:02 PM
Quote:
Originally Posted by some_punk (Post 7177913)
husky gas station's gas has 10% ethanol. The ethanol is supposed to help clean up the cats.
Please tell me what it is you're cleaning in the cat? Considering the precious CLEAN the exhaust gases as it passes through it.


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