Does anyone know how who what why when where this thing is obtained?
On my suburban and tahoe, I've the AVG MPG yes as well as Instant Econ
None of my Yukons have the Instant Econ unfortunately which I'd love. My 05 XL or Denali all lack the Instant Econ.
Is it a pin out or additional wiring thing or specific cluster eeprom programming or some feature necessary in the ECM?
On my suburban and tahoe, I've the AVG MPG yes as well as Instant Econ
None of my Yukons have the Instant Econ unfortunately which I'd love. My 05 XL or Denali all lack the Instant Econ.
Is it a pin out or additional wiring thing or specific cluster eeprom programming or some feature necessary in the ECM?
