Jeep Cherokee (XJ): Fuel system
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Fuel system
- Fuel delivery system
- Description and operation
- Diagnosis and testing
- Service procedures
- Removal and installation
- Specifications
- Fuel injection system
Frame dimensions
Frame dimensions are listed in millimeter scale.
All dimensions are from center to center of Principal
Locating Point (PLP), or from center to center of PLP
and fastener location ...
Other materials:
Powertrain control module (PCM)
DESCRIPTION
The Powertrain Control Module (PCM) is located
in the engine compartment (Fig. 1). The PCM is
referred to as JTEC.
OPERATION
The PCM operates the fuel system. The PCM is a
pre-programmed, triple microprocessor digital computer.
It regulates ignition timing, air-fuel ratio,
emis ...