Ford Escape: Electronic Engine Controls / Description and Operation - Electronic Engine Controls - Overview
Overview
The
EEC system provides optimum control of the engine through the enhanced
capability of the powertrain control module (PCM). The EEC system also
has an on board diagnostic (OBD) monitoring system with features and
functions to meet federal regulations on exhaust emissions.
The
EEC system has two major divisions: hardware and software. The hardware
includes the PCM, sensors, switches, actuators, solenoids, and
interconnecting terminals. The software in the PCM provides the strategy
control for outputs (engine hardware) based on the values of the inputs
to the PCM.
The
PCM receives information from a variety of sensor and switch inputs.
Based on the strategy and calibration stored within the PCM, the PCM
generates the appropriate output. The system is designed to minimize
emissions and optimize fuel economy and driveability. The software
strategy controls the basic operation of the engine, provides the OBD
strategy, controls the malfunction indicator lamp (MIL), communicates to
the scan tool over the data link connector (DLC), allows for flash
electrically erasable programmable read only memory (EEPROM), provides
idle air and fuel trim, and controls failure mode effects management
(FMEM)
Reference Value Symptom Chart
NOTE:
The Reference Value Symptom Chart provides guidance in
selecting the appropriate parameter identification (PID) or measured
signal related to the fault area...
LH Engine Sensor Locations
Item
Description
1
CHT sensor
2
CMP sensor
3
KS
4
MAPT sensor
5
VCT oil control solenoid
Electronic Engine Controls - RH
Item
Description
1
Catalyst monitor sensor
2
CKP sensor
3
HO2S
Powertrain Control Module (PCM)
Item
Description
1
PCM
..
Other information:
Fuel Tank Capacity
Advertised Capacity
The advertised capacity is the maximum
amount of fuel that you can add to the fuel
tank when the fuel gauge indicates empty.
In addition, the fuel tank contains an empty
reserve. The empty reserve is an
unspecified amount of fuel that remains
in the fuel tank when the fuel gauge
indicates empty.
Note: The amount of fuel in the empty
reserve varies and ..
Removal
NOTICE:
If installing a new A/C compressor due to an internal failure of the
old unit, carry out the following procedures to remove contamination
from the A/C system. Failure to remove contamination from the A/C
system, if present, will result in poor A/C performance and/or damage to
the new A/C compressor and other components.
If A/C flushing equipment is available, carry out ..