mobile mechanic, troubleshoot no start Buick northwest

Austin TX

Description

Buick died randomly, has fuel, has starter, has plenty battery, scanned found no CEL codes. Back in March died similar way, shop charged fortune to swap a brand new Crank Position Sensor. (and it ran great until this weekend) Wondering if someone charges to hunt down in driveway what's keeping 2006 Buick to ignite on, if it's something or if the 5 month old CPS was cheap knock off/improper installed let me know