Hey guys,
My 2010 SHO starts but runs pretty rough.
Codes:
P0193: Fuel Rail Pressure Sensor Circuit A High
P0236: Turbo Boost Sensor A Circuit Range
P0642: 5V Sensor Reference Circuit Low
The Turbo Boost, Fuel Rail Pressure, and MAP sensors all share this same 5V reference - which is only reading .3V.
I remove the intake and did a visual inspection of the wiring and can't find any chaffing/short etc
I unplugged the 3 sensors on this circuit and still was only getting .3V at the ECM so i replaced even replaced the computer.....still have the same issue (doh!)
I'm getting 5 volts at pins 1 and 3 of both the MAP and TCBP connectors and only .3v on the reference circuit
Any ideas or hand holding before I throw in the towel? Anybody have access to the pinout tests?
Thanks!!
(https://i.ibb.co/z48Hg13/intakereadings.jpg) (https://ibb.co/JsxFTNY)
(https://i.ibb.co/41RvLXS/nointakereadings.jpg) (https://ibb.co/MBkwHt1)
CODES:
(https://i.ibb.co/xmgdhkq/Codes.jpg) (https://ibb.co/SQmGNjw)
DIAGRAM:
(https://i.ibb.co/7GV5bwG/Sensor-Diagram.jpg) (https://ibb.co/XzpgVhz)
Connectors:
(https://i.ibb.co/ThnCKvz/Sensor-Pins.jpg) (https://ibb.co/ZTwZHLy)