| Re: Smog test on 1990 Mazda Miata [message #503564] |
Sat, 05 November 2005 04:19 |
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"liquidoxygen" <buffercapacity [at] sbcglobal.net> wrote in message
news:7b08a3149f29659e76c0c4867a0afcf7 [at] localhost.talkaboutautos.com...
>I own a 1990 Mazda Miata and it failed its smog test. Does anyone have any
> troubleshooting tips?
>
Generic catalytic converters, at muffler shops, are cheap
enough. Since there's no EGR valve, that's the only possible
culprit. At least that was the thing I replaced this year to
pass the Texas emissions test with my 1990 Miata. The
numbers changed dramatically, from the first test (fail) to
the second (pass). I'm in a "highly critical" area, suburban
Dallas/Fort Worth, with stricter standards than rural Texas.
Jim Stuyck
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| Re: Smog test on 1990 Mazda Miata [message #503571 ] |
Sun, 06 November 2005 04:09 |
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It's not that simple even on the miata. If your cat was replaced simply as a
"what else can it be" kind of thing, you simply got lucky that it was the
problem.
Chris
92BB&T
"Jim Stuyck" <jstuyck [at] comcast.net> wrote in message
news:iN2dnXdt5s9eufHenZ2dnUVZ_s2dnZ2d [at] comcast.com...
>
> "liquidoxygen" <buffercapacity [at] sbcglobal.net> wrote in message
> news:7b08a3149f29659e76c0c4867a0afcf7 [at] localhost.talkaboutautos.com...
>>I own a 1990 Mazda Miata and it failed its smog test. Does anyone have any
>> troubleshooting tips?
>>
> Generic catalytic converters, at muffler shops, are cheap
> enough. Since there's no EGR valve, that's the only possible
> culprit. At least that was the thing I replaced this year to
> pass the Texas emissions test with my 1990 Miata. The
> numbers changed dramatically, from the first test (fail) to
> the second (pass). I'm in a "highly critical" area, suburban
> Dallas/Fort Worth, with stricter standards than rural Texas.
>
> Jim Stuyck
>
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