and the obvious
get a smog test
the nox will not pass if either the TWC cat is dead, or EGR is dead. (twc , is three way catalyst)
takes both to pass this.
the exhaust sniff test.
here (when done ) using the loaded IM240 rollers, smog test. (looks like a dyno test)
they do this under load, at 25mph, and if the egr weak or dead, it fails bam , )
get a smog test
the nox will not pass if either the TWC cat is dead, or EGR is dead. (twc , is three way catalyst)
takes both to pass this.
the exhaust sniff test.
here (when done ) using the loaded IM240 rollers, smog test. (looks like a dyno test)
they do this under load, at 25mph, and if the egr weak or dead, it fails bam , )
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