EFI Live V3 Autocal requires-autocal-serial the bleed off fuel flows

the bleed off fuel flows through a -4 ORB style hole and can be routed back into the return line plumbing

2001-2026 Duramax

2017-2026 L5P Duramax Rear Differential Pressure Sensor Bung Plug — Allows you to re-thread your factory differential pressure bung hole during new sensor or exhaust replacement

*MUST HAVE AUXILLARY STARTING BATTERY REMOVED TO FIT*

EFI Live V3 Autocal requires-autocal-serial the bleed off fuel flowsEFI Live V3 Autocal EFILives AutoCal device is intended to provide a convenient platform for professional tuners to distribute custom tunes to their customers. And for their customers to collect and submit logged data back to the tuner for analysis. It allows the tuner to update and optimize the original tune without shipping and or removing controllers from customers vehicles. To program an AutoCal device for an end user, the Tuner must first program