
Re: Slow 02 response 2013 Silverado 5.3 4X4
I don't look at the numbers that way Louie. It is just me. When I am looking at a EVAP problem I will use a scan tool and the purge/seal function while watching the FTP PID. The pressure readings that you see may be right depending on what the vehicle is doing... Login to read more. ![]()
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