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Peugeot 605

XU10J2Z ENGINE  -  BOSCH MOTRONIC MP3.1 INJECTION IGNITION

 

CHECKS REPAIRS ADJUSTMENTS

Ref. KA AI 01

CONTENTS

GENERAL
ENGINE IDENTIFICATION
REMINDER OF THE PRINCIPLE OF OPERATION
NOMENCLATURE - WIRING DIAGRAMS

FAULT FINDING PROCEDURE
SEQUENCE TO BE FOLLOWED
PRECAUTIONS TO BE TAKEN
FAULT FINDING CHARTS

GENERAL

ENGINE IDENTIFICATION

The engine is identified by plates riveted to the cylinder block:

(a) Riveted plate bearing the engine type: RFZ
(b) Riveted plate bearing the engine number

REMINDER OF THE PRINCIPLE OF OPERATION

The management of petrol injection is identical to that of the XU10J2Z engine (brochure ref. KA IR 01).

The mapped type ignition is managed by the same control unit as the injection.
The information transmitted by the various sensors, exploited by the control unit,
is used to control ignition and injection.

The double coil (two primary and two secondary circuits) with four high tension outlets is controlled by the ignition amplifier module.
This is not yet integral with the control unit, and controls each of the two circuits alternately.

The system is made up of:

01. Control unit
02. Inlet manifold pressure sensor
03. Throttle potentiometer
04. Oxygen sensor
05. Catalytic converter
06. Injection-ignition test warning lamp
07. Injection-ignition test connector
08. Fuel tank
09. Fuel pump
10. Fuel filter
11. Pulsation damper
12. Distribution pipe
13. Pressure regulator

14. Injector
15. Inlet air thermistor
16. Coolant thermistor
17. Engine speed sensor
18. Ignition coil
19. Spark plug
20. Injection relay
21. Fuel pump relay
22. Ignition module
23. Canister
24. Canister purge valve
25. Canister purge cut-off solenoid valve
26. Idle regulation valve

For further information on the operation of this system, refer to the "principle of operation" brochure ref. LE AD 02.

NOMENCLATURE - WIRING DIAGRAMS

COMPONENTS

BB0 Battery
BB1 Battery plus unit
CA Ignition switch
PSF Connection board - Fuse box
C1300 Injection-ignition test connector
V1300 Injection-ignition text warning lamp
1000 Starter inhibitor switch (automatic transmission)*
1105 Ignition amplifier module
1135 Ignition coil
1200 Fuel pump relay
1210 Fuel pump
1215 Canister purge solenoid valve
1217 Canister purge cut-off solenoid valve
1220 Coolant thermistor

1239 Idle regulation valve
1240 Inlet air thermistor
1302 Injection supply relay
1313 Engine speed sensor
1317 Throttle potentiometer
1319 Injection coding resistor (not fitted)
1320 Injection-ignition control unit
1330 Injectors
1345 Oxygen sensor heater relay
1350 Oxygen sensor
4 Instrument panel
4210 Tachometer
8000 Air conditioning switch*
8005 Compressor supply relay*

NOTE
Sealed foolproof connectors with different colours fitted to the oxygen sensor 1350:
    - red connector in place of black for the heater
    - white connector in place of blue for the signal
This modification will not take effect at the same time for the connectors at the harness and sensor ends.
* According to equipment

Next page: FAULT FINDING PROCEDURE


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