Question about 1992 Honda Accord

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My 91 Accord has failed a total of four times in two days. The converter has been changed twice in as many days. The car failed the NOx ortion of the test. The results are as follows: Test 1: Low speed standard: 1045 ppm Result: 4101 ppm Hi-speed standard: 945 ppm Result: 1061 ppm Test 2: Low speed: 4334 ppm Hi speed: 2985 ppm Test 3: Low speed: 4145 ppm Hi speed: 3601 ppm Any suggestions?

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Did you chsnge the 02 sensors by any chance?usually if you have a bad catalyc converter is becauce a bad 02 sensor that cauces that to go bad.

Posted on Sep 24, 2009

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It sounds like you need a tune up and to clean the injectors take care of all the performance issues before you even begin the smog my suggestion would be plugs and wires and 100% that it can be your O2 sensor that is why your not passing that cost about $40 to $160 at a parts store and $40 to $90 to install good luck

Posted on Sep 24, 2009

  • rangerperdom Sep 24, 2009

    It sounds like you need a tune up and to clean the injectors take care of all the performance issues before you even begin the smog my suggestion would be plugs and wires and 100% that it can be your O2 sensor that is why your not passing that cost about $40 to $160 at a parts store and $40 to $90 to install good luck

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