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Tx, anybody have feedback scanner brands or are they all the same? Tx again for the help. I'll keep posting on the results.

The non dealer shop had a code reader, he said it had something to do with the emission system, hence replacing the o2 sensor. Then he said they needed to take it to the dealer to flash the ecu, and then check it again. He then added it's probably the Cat that needed to replaced and that would...

Appreciate the info, will get a scanner and do my own research. Checked the gas cap it's good.

Newbie here with a question. I have an 01 TAHOE 5.3l 98k-Mods-K&N and Gibson catback dual side exhaust and Hyperthech program. Service engine soon light came on, took it to my non dealer mechanic and his diagnosis code reader said it was related to the emission. He replaced the oxygen...