Question about 1993 Chevrolet S-10

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Why does my 1993 chevy s 10 not pass smog - 1993 Chevrolet S-10

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  • Chevrolet Master
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Scanned the ECU to know emission fautl codes stored there, according with this could send details to solve it.

I suggest to check O2 sensor and replace it, also check the Catalytic Converter.

Hope heps.

Posted on Feb 24, 2012

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Posted on Jan 02, 2017

justuscc
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SOURCE: CHEVY SUBURBAN FAILED SMOG BECAUSE OF HIGH NOX VALUES.

nox is from running lean..... its realy high temps that cause this.......... replace the o2 sensors this should cure that any more help let me know

Posted on Oct 24, 2008

  • 6982 Answers

SOURCE: I'm in the process of

If you add 3oz of acetone per 10gal of fuel if the readings were close to passing it should get you there, BUT you will have to test components to find what is malfunctioning. Could be anything from incorrect timing to (name something).There's no magic fixs.

Posted on Feb 07, 2009

  • 1 Answer

SOURCE: Hydro carbons in the carb are running extremely high and cannot pass the smog test. What can I do to at the very least to get it to pass the smog test? I really would like to fix it completely because

Take it out of the country and turn a huge profit selling it!

Posted on May 31, 2009

  • 148 Answers

SOURCE: I replaced the speedometer cable and the speedo

Could be the gear in the transmission or the speedometer head in the instrument cluster

Posted on Feb 09, 2010

Testimonial: "ok thanks "

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SOURCE: So I have a couple

Hello. yes these issues may prevent u from passing the smog test. Best to get them fixed firt if u can. Joe

4 thumbs up please. ty

Posted on Nov 04, 2010

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