Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass

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Old Aug 25, 2002 | 10:33 AM
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Default Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass

Does anyone know based on by number below what would be causing them to be so high? What can I change to reduce these numbers, anything specific? I have some thoughts, and been doing some research, but I would like a fresh perspective. I know a couple people here know there stuff about emissions.

-1990 Civic CX (Bone Stock)
-255KM
-new plugs
-new pcv
-new exhaust
-94 Octane
-clean motor
-fresh oil change

ASM2525 TEST

--------------------- LIMIT READING RESULT
HC ppm ----------- 101 ---- 140 --- FAIL
CO% ------------- 0.57 --- 1.25 --- FAIL
NO ppm---------- 1179 --- 1445 --- FAIL

[Modified by 90CIVICSI, 7:34 PM 8/25/2002]


[Modified by 90CIVICSI, 7:35 PM 8/25/2002]


[Modified by 90CIVICSI, 7:40 PM 8/25/2002]


[Modified by 90CIVICSI, 7:41 PM 8/25/2002]


[Modified by 90CIVICSI, 7:41 PM 8/25/2002]
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Old Aug 25, 2002 | 10:42 AM
  #2  
USDM 4G VTEC's Avatar
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (90CIVICSI)

get a fuel cleaner and slap 2 bottles in there.,. drive for 15 min......
change spark plugs......put a new O2 sensor($35)
that should help
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Old Aug 25, 2002 | 10:49 AM
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (JDM EF9)

Thanks Buddy, I will try that. Gotta Love H-T for the prompt respnose. Any other suggestions!?!?

Thanks!!
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Old Aug 25, 2002 | 10:51 AM
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Stop the Beast's Avatar
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (90CIVICSI)

Check the cat-converter
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Old Aug 25, 2002 | 02:45 PM
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (brokstar)

ttt

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Old Aug 25, 2002 | 04:56 PM
  #6  
b20CiViChYbRiD's Avatar
 
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From: oakland, ca
Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (90CIVICSI)

retard your timing and mess with your idle
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Old Aug 26, 2002 | 10:17 AM
  #7  
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (90CIVICSI)

The car idles fine, and the timing appears fine. How long should the stock OEM catalytic converter last? I have 255 000KM.
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Old Aug 26, 2002 | 10:21 AM
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From: Redwood City, Ca
Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (90CIVICSI)

The car idles fine, and the timing appears fine. How long should the stock OEM catalytic converter last? I have 255 000KM.
Not that long. Also, drive the car around for about an hour before you take it in to be smogged. When you get to the station, leave it running. That way the cat doesn't get to cool down.
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Old Aug 26, 2002 | 12:13 PM
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (Spade)

replace your cat with a cheapo universal one, and then go to your autoparts store and buy a one liter bottle of "methyl hydrate" - pour this into your tank when it is full and you should pass no prob.
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Old Aug 26, 2002 | 01:15 PM
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Default Re: Need Help with Emissions - Bone Stock 1990 Civic CX - I MUST pass (dumbchild)

Ya, I think I will replace the CAT. I already put a bottle of "Guaranteed To Pass" in my tank http://www.autobarn.net/ch05063.html and I will re-test on thursday. Thanks guys, and I will keep you posted on the results!!
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