Ford Mustang (1999-2004) Service Manual: Electronic Engine Controls (Description and Operation)
The electronic engine controls consist of the following:
- powertrain control module (PCM)
- throttle position (TP) sensor
- idle air control (IAC) valve
- engine coolant temperature (ECT) sensor
- cylinder head temperature sensor
- camshaft position (CMP) sensor
- crankshaft position (CKP) sensor
- mass air flow (MAF) sensor
- intake air temperature (IAT) sensor
- heated oxygen sensor (HO2S) - front
- catalyst monitor sensor - rear
- wheel speed sensor
The powertrain control module needs the following inputs to calibrate the engine correctly:
- crankshaft position
- engine rpm
- engine load (manifold pressure)
- atmospheric (barometric) pressure
- engine coolant temperature
The throttle position sensor:
- sends the powertrain control module a signal indicating the throttle plate angle.
- is the main input to the powertrain control module from the driver.
The idle air control valve:
- controls bypass air around the throttle plate at low speeds.
- is controlled by the powertrain control module.
The cylinder head temperature sensor:
- provides a gauge signal for coolant temperature.
- is mounted on rear of LH cylinder head.
- sends the powertrain control module a signal indicating engine temperature.
- resistance decreases as coolant temperature increases.
The camshaft position sensor:
- sends the powertrain control module a signal indicating camshaft position, used for fuel synchronization.
The crankshaft position sensor:
- sends the powertrain control module a signal indicating crankshaft position.
- is essential for calculating spark timing.
The mass air flow sensor:
- sends the powertrain control module a signal indicating mass air flow rate of air entering the engine.
The intake air temperature sensor:
- sends the powertrain control module a signal indicating the temperature of the air entering the engine.
The heated oxygen sensor:
- has the ability to create a voltage signal depending on exhaust oxygen content.
- provides feedback information to the powertrain control module used to calculate fuel delivery.
The rear catalyst monitor sensor:
- monitors oxygen content after the oxygen flows through the catalytic converter.
- provides a voltage to the powertrain control module used to calculate catalytic converter integrity.
The wheel speed sensor:
- sends a signal to the powertrain control module indicating wheel speed.
Electronic Engine Controls
General Specifications
Torque Specifications
...
Electronic Engine Controls - Cobra
Most of the Cobra engine electronic controls are similar to that of
the non-supercharged 4.6L (2V)
engine. These components are as follows:
Crankshaft position (CKP) sensor
Throttle posi ...
Other materials:
Removal
CAUTION: Since the engine is not free-wheeling, if the crankshaft or
the camshafts are
moved in any manner during removal and installation, the crankshaft and the
camshafts must
be re-synchronized.
1. Remove the engine front cover. For additional informatio ...
SecuriLock® passive anti-theft system
Note: The system is not compatible with non-Ford aftermarket remote
start systems. Use of these systems may result in vehicle starting
problems and a loss of security protection.
Note: Metallic objects, electronic devices or a second coded key on the
same key ...
Air Conditioning (A/C) Pressure Relief Valve - 4.6L
Material
Item
Specification
PAG Refrigerant Compressor
Oil (R-134a Systems)
F7AZ-19589-DA (Motorcraft YN-
12-C)
WSH-M1C231-
B
Removal and Installation
NOTE: Installation of a new suction accumulator is not required when
repairing the ...