2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

failed e stest at 2525- HC ppm

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Old Apr 19, 2010 | 02:31 PM
  #1  
ItsFun's Avatar
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failed e stest at 2525- HC ppm

I got the reading of 137 when it sould be 64.. But they tested the vehicle as its origonal motor but I have a 13b- re cosmo with twins in it now...Any ideas how I can pass or use my tuner to get it to pass^
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Old Apr 19, 2010 | 03:15 PM
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Have you used the search - there's a lot posted on passing emissions testing, including in the Canadian forum. You need more info posted on your setup. In particular - are you using a cat(s)? And what were your numbers on all measures (HC, CO, NOx), as they provide clues as to where your tune or emissions equipment are failing.
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Old Apr 19, 2010 | 03:18 PM
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From: The 916
check your cat, had the same problem...cat wasn't warming up or something
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Old Apr 19, 2010 | 05:04 PM
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Things that could cause that:

Not hot enough cat during test.
Nasty oil.
Poor spark plugs/wires/coils.
Air pump not working correctly.
Bad cat.
Engine ported too much.

Denatured alcohol helps bring HCs down. You can always try that there are many threads about it.
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Old Apr 20, 2010 | 02:17 PM
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ItsFun's Avatar
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From: Canada
problem solved thanks anyways everyone.
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