2012 Mustang M6
Parts installed:
Ford LU47 47lbs injectors
E85
BBK Cat Deletes
MBRP Race Catback
Hello,
I'm having the strangest problem. On 91 the car decels and slows down like any other Mustang I've tune in the past. As soon as I put this car on E85, the car's decel is poor, RPM hangs and going through parking lots the car drives itself. When doing a burnout at the dragstrip to heat the tires, when I let off it takes a solid 5-7 seconds to come back down to idle.
I put the car on the dyno to try and fix this issue but to no avail. I barely put any parts on my own car and have this bizzare issue. I'm trying to see if I made any mistakes anywhere or if there's something I missed.
This will be the first Mustang on E85 I've had this issue with. Could the Gen 1 stock airbox and stock intake manifold be the culprit? Most S197's I've tune so far had bolt ons and has not has this issue, even on flex fuel.
Attached is the Tune and the Log
shop car Robert's tune base map e85 3.hpt
rpm hanging when switched to E85 and LU47s.hpl
Thank You