Mazda Trucks
Ford Explorer Sport

You recently took your truckMazda b2000 in for a emissions test and you came out failing They said that the engine c o mixture was running to rich where do you adjust something like that on your carb?

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Wiki User
2011-10-20 17:03:29

I had the same problem. I will start with checking and or

replacing the O2 sensor. If the sensor goes bad it will

automatically make the carb run rich to protect the engine. Also check your

timing, air filter and plugs.

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