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]
-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]
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
change spark plugs......put a new O2 sensor($35)
that should help
Thanks Buddy, I will try that. Gotta Love H-T for the prompt respnose. Any other suggestions!?!?
Thanks!!
Thanks!!
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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The car idles fine, and the timing appears fine. How long should the stock OEM catalytic converter last? I have 255 000KM.
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.
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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RATEDR
Honda Civic / Del Sol (1992 - 2000)
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Mar 25, 2002 07:56 AM





