Thread: Catless wonder?
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Old 11-10-2019, 08:23 PM   #13
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Join Date: Aug 2018
Location: Austin, TX
Posts: 176
Originally Posted by maytag View Post
Im confused by this, but probably just because of terminology. To me, "smog- check" and "emissions- testing" are the same thing. Both terms refer to testing, without distinguishing method of testing.

Is that how you're using the terms?

If so, then the ROW tune won't pass a plug- into-obd2 test in your county in Texas?

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When I said emission testing (no smog) I meant to test emission using only the plug in obd2 method for results, and smog testing is to also test emission by inserting the sniffer probe into the exhaust system.

In my county we do not do sniff testing (will result into a fail with no cats), but we only test emission using the obd2 plug in method (only checks if enabled monitors are “ready”). Inspectors here are also supposed to do a visual test but many are not well educated and can’t tell the difference between a cat, resonator and muffler (especially in quick lube stores) so most of them skip the the visual test.

Last edited by JimmyBad; 11-10-2019 at 08:46 PM.
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