My 94 xj6 failedIt failed an emission test today. I was shocked.
The car runs great, as far as I can tell no problems. It
failed the hydrocarbon part. The Stadard was 0.9000 GPM and
my car got 0.9973 GPM. It passed hte cabon monoxide and
oxides of nitrogen part. What do you all think? The guy at
the emission place said to drive it on the highway for about
20 min then bring it to the test center again. I didn’t have
time for it today. Can a car that was sitting for awhile
that gets tested have more gas ‘build-up’ that cause it to
fail a test?
Does it sound like catalytic problem? How should I approach
this without having to spend hundreds?
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In reply to a message from newcat2007 sent Thu 18 Jan 2007:
IIRC, someone posted (back in December?) that they did
exactly the same thing after that failure: a quick blast to
get her really warmed up, then back to the test centre. An
archive search for ‘emissions’ would probably turn it up.–
JagFab, 1988 JaguarSport XJR 3.6 (RHD)
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How many miles/years on your O2 sensor(s). If more than 50K miles/5
years, then I would suggest replacing the O2 sensor, as that can make a
HUGE difference in HC emissions.
George Balthrop, Clifton, VA USA
85 & 89 XJ-S Coupes; 89 XJ40 VDP-----Original Message-----
From: temple07@gmail.com
My 94 xj6 failedIt failed an emission test today. I was shocked.
The car runs great, as far as I can tell no problems. It
failed the hydrocarbon part. The Stadard was 0.9000 GPM and
my car got 0.9973 GPM. It passed hte cabon monoxide and
oxides of nitrogen part.
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In reply to a message from newcat2007 sent Thu 18 Jan 2007:
Steve the same thing happened to my 89vdp last year.George
mentioned the 02 sensor and I replaced mine at the time. Other
items you should look at are the air filter, a change of oil,check
your plugs and give it a good run 10 to 15 miles at 60 or 70 mph
and drive it directly in to retest. The engine must be at operating
temp. Good Luck John.–
John. Walsh. Purrrrr 89 vdp
bowmanville ontario, Canada
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In reply to a message from h s law sent Thu 18 Jan 2007:
sounds like your lambda/02 sensor could be dodgy. after a lot of
use it can just get dirty and tell the ECU the wrong info, which
could make the engine run rich.
if thats not the problem, try what john suggested; check filters,
plugs etc and give it a good run to get it up to temp before
getting it tested again.–
The original message included these comments:
mentioned the 02 sensor and I replaced mine at the time. Other
items you should look at are the air filter, a change of oil,check
your plugs and give it a good run 10 to 15 miles at 60 or 70 mph
and drive it directly in to retest. The engine must be at operating
temp. Good Luck John.
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services
and resources including Photo Albums, Event Diary / Calendar, On Line
Books and
more !
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