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Home/Jaguar/S-type/Jaguar S-type I рестайлинг (2004-2008)/Repair manual/Engine Control Systems/Engine Emission Control (2.5L, 3.0L & 4.2L): Specifications
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Engine Emission Control (2.5L, 3.0L & 4.2L): Specifications Jaguar S-type I рестайлинг

Engine Control Systems ~1516 words

Specifications

DescriptionNm
Exhaust gas recirculation (EGR) valve to intake manifold retaining bolts10
EGR valve tube to EGR valve retaining bolts21
Exhaust manifold to EGR valve tube retaining nuts21

Torque Specifications

DescriptionNm
Exhaust gas recirculation (EGR) valve to intake manifold retaining bolts - Vehicles with 4.2L engine10
EGR valve tube to EGR valve retaining bolts - Vehicles with 4.2L engine21
Exhaust manifold to EGR valve tube retaining nuts - Vehicles with 4.2L engine21
Secondary air injection (AIR) control valve to exhaust manifold tube retaining nuts35
AIR control valve to exhaust manifold tube to exhaust manifold adaptor35
Exhaust manifold blanking plug - Vehicles without AIR35
AIR control valve bracket retaining bolt - Vehicles with 3.0L engine8
AIR control valve bracket retaining nut - Vehicles with 3.0L engine8
AIR control valve retaining bolts - Vehicles with 4.2L engine25
AIR pump retaining nuts9
AIR pump retaining bolt9
AIR vacuum reservoir retaining nut5
AIR vacuum reservoir retaining bolt5

Torque Specifications

AIR Pressure Sensor - North American specification vehicles only

The AIR system is monitored by measuring the system pressure by using the AIR pressure sensor at several instances during its cycle of operation.

The AIR system pressure is measured before operation of the AIR pump. The AIR pump is then switched on and with a one second delay, the AIR switching valve is opened. After a stabilizing period, the system pressure is measured again, this time by taking the average of a one second duration of readings, and normalizing for variations in battery voltage and atmospheric pressure. If the system pressure measured at this time has not risen enough with respect to the initial AIR pressure reading then a failure will be flagged.

A second pressure measurement is made after the requirement for AIR into the exhaust system has expired, but continuing on from the same period of AIR pump operation, i.e. the pump is left running, against a closed AIR switching valve. Again this pressure measurement is the average of a one second duration of readings normalized for variations in battery voltage and atmospheric pressure. If the system pressure measured at this time has not risen enough or has risen too much with respect to the system pressure during normal operation of AIR then a failure will be flagged.

A final pressure reading is taken after the AIR system has been switched off to ensure the system shuts down.

Pinpoint Test C: (N/A FEDERAL SPECIFICATION ONLY) CHECK THE SECONDARY AIR INJECTION MAP SENSOR CIRCUITS

Pinpoint Test C

C1 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND
  1. Key off.
  2. Disconnect the secondary air injection MAP sensor electrical connector, FH312.
  3. Measure the resistance between
  4. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 01 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 2 . → 2
C2 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO POWER
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 01 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 3 . → 3
C3 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 02 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 4 . → 4
C4 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SIGNAL CIRCUIT FOR SHORT CIRCUIT TO POWER
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 02 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 5 . → 5
C5 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SUPPLY CIRCUIT FOR HIGH RESISTANCE
  1. Disconnect the ECM electrical connector, FH300.
  2. Measure the resistance between
  3. Secondary air injection MAP sensor connector FH312, harness side ECM connector FH300, harness side Pin 01 Pin 19
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 6 . → 6
C6 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SIGNAL CIRCUIT FOR HIGH RESISTANCE
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side ECM connector FH300, harness side Pin 02 Pin 13
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 7 . → 7
C7 CHECK THE SECONDARY AIR INJECTION MAP SENSOR GROUND CIRCUIT FOR HIGH RESISTANCE
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side ECM connector FH300, harness side Pin 03 Pin 07
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO INSTALL a new secondary air injection MAP sensor. CLEAR the DTC and test the system for normal operation.

Pinpoint Test C

C1 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND
  1. Key off.
  2. Disconnect the secondary air injection MAP sensor electrical connector, FH312.
  3. Measure the resistance between
  4. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 01 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 2 . → 2
C2 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO POWER
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 01 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 3 . → 3
C3 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 02 Negative terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 4 . → 4
C4 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SIGNAL CIRCUIT FOR SHORT CIRCUIT TO POWER
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side Battery Pin 02 Positive terminal
Is the resistance less than 10,000 ohms?
YES REPAIR the short circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 5 . → 5
C5 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SUPPLY CIRCUIT FOR HIGH RESISTANCE
  1. Disconnect the ECM electrical connector, FH300.
  2. Measure the resistance between
  3. Secondary air injection MAP sensor connector FH312, harness side ECM connector FH300, harness side Pin 01 Pin 19
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 6 . → 6
C6 CHECK THE SECONDARY AIR INJECTION MAP SENSOR SIGNAL CIRCUIT FOR HIGH RESISTANCE
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side ECM connector FH300, harness side Pin 02 Pin 13
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO Go to step 7 . → 7
C7 CHECK THE SECONDARY AIR INJECTION MAP SENSOR GROUND CIRCUIT FOR HIGH RESISTANCE
  1. Measure the resistance between
  2. Secondary air injection MAP sensor connector FH312, harness side ECM connector FH300, harness side Pin 03 Pin 07
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, See appropriate SYSTEM WIRING DIAGRAMS article. CLEAR the DTC and test the system for normal operation.
NO INSTALL a new secondary air injection MAP sensor. CLEAR the DTC and test the system for normal operation.

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