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| B-Series/Bravo/Bounty/Drifter Bravo is the Australian vesion, Bounty the New Zealand version and Drifter the South African version. |
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08-12-2006, 02:27 PM
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#1 | |
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AF Newbie
 Join Date: Mar 2005
Location: pico rivera, California
Posts: 71
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nox too high failed ca. emisson test....
failed california emission test on my 86 b2000. nox reading was 1522 and the max is 1120. the reading was at 15mph. i passed at the upper speed measuring 848 with the max at 1190. what to do to get this engine to pass? test results were @15mph co 13.3, o2 1.9, hc 43, co .02, and no 1522. resulkts @25 co 1, hc36, co .02 no 848. any clues or advice greatly needed!!! thanks again edsel...
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08-17-2006, 01:42 PM
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#2 | |
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AF Regular
Join Date: May 2004
Location: Phoenix, Arizona
Posts: 358
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Thanked 3 Times in 3 Posts
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Re: nox too high failed ca. emisson test....
Check the vacuum hose going to the EGR for cracks or leaks. If none, test the EGR with a hand vacuum pump, may have to take that off and clean it to restore its operation.
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10-04-2006, 05:38 PM
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#3 | |
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AF Regular
 
Join Date: Aug 2006
Location: Rochester, New York
Posts: 250
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Re: nox too high failed ca. emisson test....
Slap another catalatic converter on there, that should fix the problem.
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10-04-2006, 06:42 PM
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#4 | |
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AF Regular
 Join Date: Apr 2006
Location: chattanooga, Tennessee
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Re: nox too high failed ca. emisson test....
plus a new 02 sensor.
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10-04-2006, 08:23 PM
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#5 | |
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AF Enthusiast
 Join Date: Apr 2005
Location: Phoenix, Arizona
Posts: 761
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Re: nox too high failed ca. emisson test....
The EGR system lowers Nox. Your EGR valve is not opening or a passage including the valve as Cusser wrote is restricted (blocked) by carbon.
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