MY CHECK ENGINE LIGHT CAME ON DUE TO NEEDING A CATALYSTIC CONVERTER..THE MECHANIC TURNED THE ENGINE LIGHT OFF..AND SAID DRIVE IT TELL ALL THE SYSTEMS COME BACK UP..HOW LONG DOES THAT TAKE???

Asked by Sep 30, 2015 at 04:53 PM about the 2006 Cadillac CTS 2.8L

Question type: Maintenance & Repair

Can it still pass emissions once all systems
come back up

1 Answer

254,215

You might have had a cat code but not an indication that they need replacing. He cleared your codes and if the CEL comes back on, you still have an issue. You can pass emissions if the light is off.

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