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Old 08-21-2014, 12:13 AM   #1
TommyM
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Default Smog fail for HydroCarbons

I recently smogged my 1995 Ti twice. The first time I failed horribly with my hydrocarbon part per million count being 141 and the max to pass is 59. I took the car to the mechanic and he ran an additive through my fuel and cleaned/checked a bunch of parts resulting in my second smog test with a measure of 72 HC (PPM) with a max to pass at 59. I am very close to passing and everyone is recommending getting a new Cat Converter; however, before I spend the money on a new Cat I was wondering if anyone had any suggestions on how to shave 13 PPM off of the Hydrocarbon count?

Thanks!

-Tom
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Old 08-21-2014, 03:30 AM   #2
BlackBMWs
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Aside from driving it like you stole it before the test for 30 min, Don't know. If you do replace it, I have used California compliant Magnaflow cats as an alternative to OEM cats in my M42s to pass. Once installed, the car barely registered in the test. Drive 30 minutes to heat it up real good before taking the test.

Good luck!
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1998 318ti Sport - "Cali" Schwartz II/Schwartz sport interior, Cali top
1998 318ti Sport - "Max" Schwartz II/Schwartz sport interior, S52
1997 318ti Sport - "Tiny" Schwartz II/Schwartz sport interior
1995 318ti Active - "Blanca" Alpineweib III/Schwartz leather interior

Other Current Bimmers: 2006 530i / 2000 2.3L Z3 / 1997 1.9L Z3 / 1999 540it

1997 318ti Sport - "Huera" - RIP
1995 318ti Active - RIP
1995 318ti Sport - "Tiny" Sold
1994 325i Sedan - "Jade" - Sold
1991 318ic - "Bert" - Sold
1985 635csi sold
1984 533i "Max" Sold
1984 318i sold

BMWCCA #160411

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Old 08-21-2014, 07:28 AM   #3
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I see you are located in Sacramento. Where did you get the Cat job done and how much did it cost? Right now I have looked into a place downtown and one on Fulton ave. Both seem to be priced around 325...
Also, did they have you provide a diagnostic from a mechanic saying that it is in fact the Cat that is causing the failed smog?

Thank you for your help
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Old 08-21-2014, 08:38 AM   #4
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Check those O2 sensors? And how about those injectors? Have they been rebuilt or replaced? Coil packs? Gotta make sure all the maintenance is done accordingly. Also any vacuum lines. Hope you solve your issue tho. I know how difficult the CA smog is as well
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Float like a cadilac, sting like a BIMMER

.... my socket is just too thick and won't fit in the hole! damnit!


Marv's 332ti is in the werks. Stay tuned ya'll ...

Check list: S52 swap, manual transmission swap, 3.25 LSD with M Coupe diff cover, SuperSprint muffler, M3 style mirrors, AFE intake, ASC delete, M50 Manifold swap, UUC strut bar, ZHP lighted knob, Vaders, M-tech interior, OEM armrest, AC Schintzer front lip, AC Schnitzer rear spoiler, Roof spoiler, 18'' rims, M3 front drilled brakes, LED interior lights, 3 spoke Euro style steering wheel, OEM roof spoiler and bike holder, Thule fairing, Euro tail lights, oil pressure guage, carbon fiber hood painted to original paint (still showing CF weaving), what's next to do...?
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Old 08-21-2014, 03:05 PM   #5
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Quote:
Originally Posted by TommyM View Post
I see you are located in Sacramento. Where did you get the Cat job done and how much did it cost? Right now I have looked into a place downtown and one on Fulton ave. Both seem to be priced around 325...

Also, did they have you provide a diagnostic from a mechanic saying that it is in fact the Cat that is causing the failed smog?



Thank you for your help

3 different BMWS, (2 M42,s 1 M50) ave cost $220 part and labor, plus a large Pepsi and a steak burrito. Very cool guy runs a muffler shop. One man operation. 99 and Fruitridge. PM me and we can talk.



1998 & 1997 318ti Sport Schwartz II
1995 318ti Active Alpineweib III
__________________


1998 318ti Sport - "Cali" Schwartz II/Schwartz sport interior, Cali top
1998 318ti Sport - "Max" Schwartz II/Schwartz sport interior, S52
1997 318ti Sport - "Tiny" Schwartz II/Schwartz sport interior
1995 318ti Active - "Blanca" Alpineweib III/Schwartz leather interior

Other Current Bimmers: 2006 530i / 2000 2.3L Z3 / 1997 1.9L Z3 / 1999 540it

1997 318ti Sport - "Huera" - RIP
1995 318ti Active - RIP
1995 318ti Sport - "Tiny" Sold
1994 325i Sedan - "Jade" - Sold
1991 318ic - "Bert" - Sold
1985 635csi sold
1984 533i "Max" Sold
1984 318i sold

BMWCCA #160411

SUPPORT 318ti.org! CLICK THE LINK ABOVE!
Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW!

Last edited by BlackBMWs; 08-21-2014 at 03:26 PM.
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Old 08-25-2014, 07:39 PM   #6
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Quote:
Originally Posted by Marv17 View Post
Check those O2 sensors? And how about those injectors? Have they been rebuilt or replaced? Coil packs? Gotta make sure all the maintenance is done accordingly. Also any vacuum lines. Hope you solve your issue tho. I know how difficult the CA smog is as well
Marv17,
I just looked into all the things you mentioned. The o2 sensor was cleaned and so were the injectors, coil packs are most likely original and haven't been touched since the car was built and the vacuum lines were also just tested and no leaks were detected. I told my mechanic about the coils but he insists that it is the Cat causing the failed smog. His reasoning being that this is the original Cat in the car and it has over 250,000 miles on it and should be replaced regardless. I just want this car to pass so I can sell it to someone who will appreciate the car and take better care of it than I can.
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Old 08-25-2014, 07:51 PM   #7
TommyM
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Quote:
Originally Posted by BlackBMWs View Post
3 different BMWS, (2 M42,s 1 M50) ave cost $220 part and labor, plus a large Pepsi and a steak burrito. Very cool guy runs a muffler shop. One man operation. 99 and Fruitridge. PM me and we can talk.



1998 & 1997 318ti Sport Schwartz II
1995 318ti Active Alpineweib III
I am new to this site and sending a Pm to you seems to not be working. The message I am getting is "Your user account may not have sufficient privileges to access this page".
Would it be possible if you started the PM and we can go from there.
Thank you!
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Old 08-25-2014, 08:11 PM   #8
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Where you located in California? I would try to source a used cat with significantly lower miles on it. If you're local to me I know someone selling a 318 cat. MagnaFlow makes a obd 2 complaint cat but not sure how long it'll last you. Worth a try in looking into it though. Good luck
__________________

-Theta Chi-
Float like a cadilac, sting like a BIMMER

.... my socket is just too thick and won't fit in the hole! damnit!


Marv's 332ti is in the werks. Stay tuned ya'll ...

Check list: S52 swap, manual transmission swap, 3.25 LSD with M Coupe diff cover, SuperSprint muffler, M3 style mirrors, AFE intake, ASC delete, M50 Manifold swap, UUC strut bar, ZHP lighted knob, Vaders, M-tech interior, OEM armrest, AC Schintzer front lip, AC Schnitzer rear spoiler, Roof spoiler, 18'' rims, M3 front drilled brakes, LED interior lights, 3 spoke Euro style steering wheel, OEM roof spoiler and bike holder, Thule fairing, Euro tail lights, oil pressure guage, carbon fiber hood painted to original paint (still showing CF weaving), what's next to do...?
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