FUEL PRESSURE SENSOR
Review the high pressure fuel system warning. See WARNING.
The fuel flows to the fuel pressure sensor through an opening in the rail, the end of which is sealed off by the
sensor diaphragm. Pressurized fuel reaches the sensor's diaphragm through a blind hole. The sensor element
(semiconductor device) converts the pressure to an electric signal is mounted on this diaphragm. The signal
generated by the sensor is monitored by the ECM.
REMOVAL
FUEL PRESSURE SENSOR
1. Disconnect negative battery cable.
2. Remove engine cover.
3. Clean the area around the fuel pressure sensor with Mopar® Throttle Body Cleaner P/N 04897156AA or
equivalent degreasing solvent and compressed air.
4. Disconnect fuel pressure sensor electrical connector.
WARNING:
High pressure fuel spray can cause severe cuts, and is extremely
flammable. Before opening any part of the high pressure fuel
system, wait for a minimum of 30 seconds after turning off the
engine to allow pressure to bleed down from the high pressure side
of the fuel system. Otherwise severe personal injury can result when
the high pressure fuel system is opened.
WARNING:
No sparks, open flames or smoking. Risk of poisoning from inhaling
and swallowing fuel. Risk of injury to eyes and skin from contact
with fuel. Pour fuels only into suitable and appropriately marked
containers. Wear protective clothing.
NOTE:
Do allow cleaning solvent or debris to enter the fuel pressure sensor
harness connector.
WARNING:
When working with parts on the high side of the fuel injection
system such as the fuel rail and high pressure injector lines, slowly
loosen the part to allow any residual pressure to bleed down from
the high pressure side of the system.
2007 Dodge Nitro R/T
2007 ENGINE Fuel System - Nitro