| Vancouver Auto Chat 2016 VAC Community Head Moderator: Raid3n |
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09-12-2010, 10:39 AM
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#1
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My homepage has been set to RS
Join Date: Mar 2008
Location: Vancouver
Posts: 2,195
Thanked 5,428 Times in 864 Posts
Failed 36 Times in 32 Posts
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Failed Aircare... Again
Need some help on getting a car to pass Aircare... 1994 Altima with the KA24 
Car had sat for the past year but has been on the road for a couple months now. Plugs, wires, rotor, cap, oil, fuel filter, air filter and 02 sensor all replaced. MAF cleaned and crankshaft/injectors have been seafoamed in the last 10k kms.
Onto the results. 3 tries total thusfar.
1st - with old gas and old oil...
HC (0.5000 allowed), 0.8839 FAIL
CO (9.3200 allowed), 8.9307 PASS
NOx (1.2400 allowed), 2.7817 FAIL
2nd - fresh oil, threw 94 in and went for a nice drive prior
HC: 0.7599 FAIL
CO: 3.1625 PASS
NOx: 2.9780 FAIL
3rd - ran back on Chevron 87, 3:2 ratio of methyl hydrate, redlined the car all the way to the Aircare center, got the cat all nice and toasty
HC: 0.7200 FAIL
CO: 2.4968 PASS
NOx: 3.1731 FAIL
Does anyone have any suggestions on what might be the culprit here?
Judging by the high numbers and the failure in HC and NOx, I'm thinking it's the cat. It's a 2.5" Magnaflow high flo cat which I now realize is useless for actual emissions reduction. Also any leads on where to not have to spend $250 for an OEM equivalent would be nice (Lordco). 
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09-12-2010, 11:39 AM
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#2
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NOOB, Not Quite a Regular!
Join Date: Feb 2009
Location: Richmond
Posts: 25
Thanked 7 Times in 3 Posts
Failed 0 Times in 0 Posts
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i have a Walker Cat i used to get my RB25 240 through aircare. Passed first time with amazing numbers.
I had a KA24 so my emissions are set for a KA. These were my numbers:
Im renting it out for $25 if your interested. Its a 3" tho so i dont know if it will fit. P'M me for more information if your interested.
If you fail, i will refund your $25.
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09-12-2010, 11:40 AM
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#3
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My dinner reheated before my turbo spooled
Join Date: Nov 2003
Location: Vancouver
Posts: 1,721
Thanked 80 Times in 33 Posts
Failed 0 Times in 0 Posts
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Does a KA24 have an EGR? That's a big culprit of NOX, especially since yours doubles the amount allowable.
Just double check that it's operating properly
And then look at that cat. You're right high flow cats do shit for emissions. lol.
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09-12-2010, 11:41 AM
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#4
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My dinner reheated before my turbo spooled
Join Date: Nov 2003
Location: Vancouver
Posts: 1,721
Thanked 80 Times in 33 Posts
Failed 0 Times in 0 Posts
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Quote:
Originally Posted by BigDaddyYumYum
i have a Walker Cat i used to get my RB25 240 through aircare. Passed first time with amazing numbers.
I had a KA24 so my emissions are set for a KA. These were my numbers:
Im renting it out for $25 if your interested. Its a 3" tho so i dont know if it will fit. P'M me for more information if your interested.
If you fail, i will refund your $25. |
Holy, your engine is fucking clean burning!
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09-12-2010, 12:24 PM
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#5
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OMGWTFBBQ is a common word I say everyday
Join Date: Oct 2008
Location: Coquitlam
Posts: 5,323
Thanked 3,782 Times in 1,242 Posts
Failed 533 Times in 187 Posts
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hole in the downpipe, cover with tbolt clamps and cut up can.
__________________
'16 Ram 1500
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09-12-2010, 12:33 PM
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#6
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NOOB, Not Quite a Regular!
Join Date: Sep 2010
Location: Burnaby
Posts: 44
Thanked 4 Times in 3 Posts
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I have hear that guys have failed at the burnaby locations and then passed with flying colors at others....maybe try another location?
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09-12-2010, 12:44 PM
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#7
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Head Moderator
Join Date: Dec 1982
Location: Great White Nor
Posts: 22,660
Thanked 6,462 Times in 2,081 Posts
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Quote:
Originally Posted by Triballurker
I have hear that guys have failed at the burnaby locations and then passed with flying colors at others....maybe try another location?
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The only reason why that method might work is because you're spending less time driving to the Burnaby location as opposed to one in, say, Langley. More time driving, especially on the highway, means a hotter and more efficient running engine once you've hit a location farther away.
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09-12-2010, 02:14 PM
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#8
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My homepage has been set to RS
Join Date: Mar 2008
Location: Vancouver
Posts: 2,195
Thanked 5,428 Times in 864 Posts
Failed 36 Times in 32 Posts
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Quote:
Originally Posted by BigDaddyYumYum
i have a Walker Cat i used to get my RB25 240 through aircare. Passed first time with amazing numbers. Im renting it out for $25 if your interested. Its a 3" tho so i dont know if it will fit. P'M me for more information if your interested.
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Thanks for the offer of the cat but it needs to be welded on... So, might damage it a tad...
Any leads on where you got it from and how much?
Quote:
Originally Posted by lexluthor09
Does a KA24 have an EGR? That's a big culprit of NOX, especially since yours doubles the amount allowable.
Just double check that it's operating properly
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As far as the EGR goes, I have checked the diaphragm but honestly, that's as far as my checking went. Any ideas on how to check it further? Lots of little hoses and spots to get it clogged up it seems.
Quote:
Originally Posted by Triballurker
I have hear that guys have failed at the burnaby locations and then passed with flying colors at others....maybe try another location?
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I've been to Vancouver and Abbotsford locations already, Abby being the 3rd attempt with not much improvement in the results.
I'm still leaning towards the cat but I'd rather get a second opinion before I drop $300 and possibly fail again.
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09-12-2010, 04:55 PM
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#9
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I *heart* Revscene.net very Muchie
Join Date: Dec 2007
Location: Shanghai
Posts: 3,586
Thanked 957 Times in 367 Posts
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Quote:
Originally Posted by SkunkWorks
Thanks for the offer of the cat but it needs to be welded on... So, might damage it a tad...
Any leads on where you got it from and how much?
As far as the EGR goes, I have checked the diaphragm but honestly, that's as far as my checking went. Any ideas on how to check it further? Lots of little hoses and spots to get it clogged up it seems.
I've been to Vancouver and Abbotsford locations already, Abby being the 3rd attempt with not much improvement in the results.
I'm still leaning towards the cat but I'd rather get a second opinion before I drop $300 and possibly fail again. |
go visit my mechanic in richmond, everytime i fail like no tomorrow, he guarantees a pass and hasnt let me down. Go gets my 30 year old datsun with no cat through every time, very reasonable price too. Tell him Jackson sent you.
Ara (ah-rah) 604-276-0223
__________________
yolo
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09-12-2010, 05:05 PM
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#10
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My homepage has been set to RS
Join Date: Mar 2008
Location: Vancouver
Posts: 2,195
Thanked 5,428 Times in 864 Posts
Failed 36 Times in 32 Posts
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Alright, did a quick check of my EGR system and the diaphragm isn't stuck which is good. The engine stalled when I pushed the diaphragm up and there are no CELs.
Only thing is that when I rev the motor to 2-3000 RPM, the diaphragm doesn't move. I'm thinking it maybe a problem with the solenoid?
Anyone have a multi-meter and/or a vacuum pump they could lend?
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