E40 ECMs and Map Sensors 2 bar, 2.5 bar, 3 bar+

E40’s cannot use more than 256 kPa of manifold pressure. It is a hard code limit.  Because of this, an E40 cannot use the popular LSA/LS9 map sensor which has a scalar of 312.50kPa.

E40’s were used in  

  • 2005 Corvette
  • 2005 & 2006 V8 Trailblazer, Envoy, GMT360 V8 
  • 2005 & 2006 GTO

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