Defective knock censor causes etest failure?

I have a defective knock censor with my 98 Sienna. When I took my etest yesterday, it failed the test and reading were HC ppm 46, CO% 0.12 and NO ppm 830 (fail). Is the knock censor directly related to the failure? can somebody give me some clues on this?

Update:

I have a defective knock censor (got code P0330) with my 98 Sienna. When I took my etest yesterday, it failed the test and reading were HC ppm 46, CO% 0.12 and NO ppm 830 (fail). Is the knock censor directly related to the failure? can somebody give me some clues on this?

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  • 1 decade ago
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    Start by testing the EGR system performance then the catalytic converter efficiency. Unless there is a knock sensor code, no need to go there.

    Source(s): 15 yr exp ASE Cert Master Technician
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