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Old 09-29-2011, 12:35 PM   #1 (permalink)
jakobnev
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Join Date: Oct 2010
Location: sweden
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Princess - '92 Mazda MX-3 GS
House of Tudor
Team Mazda
90 day: 53.54 mpg (US)

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Failed emissions -92 MX-3 GS

A week ago poor Princess failed emission with the following results(limit in parenthesis):
  • CO 2.1(0.5)%
  • CO2500 0.6(0.3)%
  • HC 235(100)ppm
  • Lambda 0.98(0.97-1.03) (Passed, but listed for reference)


A while back the ignition module failed on me, and while diagnosing there was a lot of starting. So i suspect that the oil is flooded gas soaked, i'll be changing that soon, and also checking ignition timing, since it may have shifted when i disassembled the distributor.

There is another symptom also: When hot she hesitates on low revs, but runs fine otherwise. I hope it's nothing more expensive like lambda probes or MAF sensor.


I'd also like to know if anyone has had problems from EOC:ing too much, like 70% of their distance.

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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
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