why do I need to put 100 miles after repair?

Asked by Robyn Apr 18, 2022 at 05:59 PM about the 2010 Pontiac G6

Question type: Maintenance & Repair

I had to replace the thermastat on my pontiac but was told that  had to put 100
on before it could be smoged.  Why is that?

4 Answers

1,720

If your check engine light is on it's an automatic fail at smog. Light needs be out long enough to get through smog and nothing pending such as 02 sensors or cat below threshold

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1,720

You can buy a 30.00 code reader at Wal Mart for OBD-2 will be in automotive near oil filters

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152,775

They cleared your computer as part of the repair. Your readiness monitors must be reset before you go for the smog test. If they're not ready (set) you will fail. One important thing is the gas gauge must be between one quarter and three quarters full for the computer to run the diagnostics on all the systems to set the readiness monitors. If the gas gauge is above the three quarter mark or below the one quarter mark the readiness monitors for the EVAP system, catalytic converter, and EGR system will not set no matter how many miles you drive. Hope that helps! Jim

37,515

Some states allow one monitor to be up , with a friends P.T. cruiser we drove around till the monitors were good enough and bought it in , we had a 30 mile window to get the sticker before the code would come back up .

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