08 Ford Mustang gt 4.6 lt supercharged
08-09-2013, 06:42 PM
#1
Thread Starter
Join Date: Aug 2013
Location: NC
Posts: 1
08 Ford Mustang gt 4.6 lt supercharged
Hello I'm working on my sisters 08 mustang gt she had a supercharger installed about two month ago by a professional. They put new injectors in it and new fuel pump. Has not had a problem till yesterday.The Car acts like its starving for fuel you hit the gas pedal and it acts like it wants to shut off. Check engine light came on with code p0191 (Fuel Rail Pressure Sensor Circuit Range/Performance) replaced the fuel rail pressure sensor and the Fuel filter and put some premium gas in tank just in case it had bad gas in it car only had 1/8 of a tank of gas add 5 gallons of premium fuel. After doing all this car still runs the same and code is still on. At a loose of what to do. Any suggestions would be help full Thanks.
08-09-2013, 07:44 PM
#4
Not sure about the code, can you reach the sensor with a volt-meter to check its continuity? May look into replacing that sensor, and like the others said, check the fuel pump. Also did she get a KB Boost-a-pump? Might be an issue there?, but I do recall reading somewhere that if you s/c, you should consider 1/4 tank line as "E" and treat it as such... just something I read and when I s/c I intend to abide by, Hell the Corps taught me to always have 3/4 tank in case you have to do SDRs...
08-10-2013, 07:54 AM
#5
5th Gear Member
Join Date: Sep 2010
Location: IN
Posts: 2,248
Hello I'm working on my sisters 08 mustang gt she had a supercharger installed about two month ago by a professional. They put new injectors in it and new fuel pump. Has not had a problem till yesterday.The Car acts like its starving for fuel you hit the gas pedal and it acts like it wants to shut off. Check engine light came on with code p0191 (Fuel Rail Pressure Sensor Circuit Range/Performance) replaced the fuel rail pressure sensor and the Fuel filter and put some premium gas in tank just in case it had bad gas in it car only had 1/8 of a tank of gas add 5 gallons of premium fuel. After doing all this car still runs the same and code is still on. At a loose of what to do. Any suggestions would be help full Thanks.
08-10-2013, 04:34 PM
#7
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
What supercharger? Auto/manual? What about free revving?
Be sure traction control is off. It will shut down the motor in a hurry if the wheels are spinning.
Be sure traction control is off. It will shut down the motor in a hurry if the wheels are spinning.
Last edited by moosestang; 08-10-2013 at 06:46 PM.
08-10-2013, 06:33 PM
#9
5th Gear Member
Join Date: Oct 2009
Location: Maui
Posts: 4,752
