Ford Mustang (1999-2004) Service Manual: EGR System Components
The EGR system returns a portion of the exhaust gas to the intake manifold to reduce the combustion temperature. This results in lower nitrous oxide formation.
The powertrain control module (PCM) controls the EGR vacuum regulator solenoid . The EGR vacuum regulator solenoid controls the vacuum to the EGR valve. When the EGR valve opens, exhaust gas flows to the intake manifold. The EGR transducer measures the flow through the EGR valve to exhaust manifold tube and sends a signal to the powertrain control module. A metering orifice in the EGR valve to exhaust manifold tube restricts the flow rate when the EGR valve is open.
The PCV valve:
- controls the amount of ventilating air and blow-by gases going to the intake manifold.
- prevents a backfire from reaching the crankcase.
The EGR valve to exhaust manifold tube:
- connects the exhaust manifold to the EGR valve.
- has two tubes connecting to the EGR transducer for EGR flow monitoring.
The EGR transducer:
- monitors the EGR flow rate through the EGR valve to exhaust manifold tube.
- sends an EGR flow rate signal to the powertrain control module.
The EGR vacuum regulator solenoid uses input from the powertrain control module to change the EGR valve operation.
Engine Emission Control (DIAGNOSIS AND TESTING)
Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Typical Vehicle Emission Control Information (VECI) Decal
The Vehicle Emission Control Information (VECI) decal shows: the components of the emission control system. the correct vacuum hose routing. the color stripe of the vacuum hoses. ...Exhaust Gas Recirculation (EGR) Valve
Removal and Installation NOTE: The 4.6L, 2V is shown. The 3.8L is similar. 1. Disconnect the vacuum hose. 2. Disconnect the EGR tube from the EGR valve. 3. Remove the two bolts, the EGR valve an ...Other materials:
Stay Pad - Convertible Top
Removal
1. Remove the convertible top material. For additional information, refer to
Convertible Top
Material in this section.
2. Remove the rear window glass. For additional information, refer to
Convertible Top Assembly-
Rear Window Glass in this section. ...
Pinpoint Test E: LFC 15/DTC B1916 - Driver Air Bag Circuit Shorted to
Battery or Ignition
Normal Operation
The restraints control module (RCM) checks for driver air bag circuit
shorts to battery or ignition by
monitoring the voltage of circuit 614 (GY/OG) and 615 (GY/WH) at pins 3 and
4. If the RCM detects a
short to battery or ignition on e ...
Diagnostic Trouble Code Charts
Diagnostic Trouble Code Chart
Five
Digit
DTC
Component
Description
Condition
Symptom
Action
P0102
P0103
P1100
P1101
MAF
MAF concerns
MAF system has a
malfunction which
may cause a
transmission
concern.
High or low ...