Page 75 of 891
ENGINE E7J-26212
12 - 3
F UEL M IXTURE
Characteristics
DENOMINATION PARTICULARITIES
Potentiometer with
valve
At idling running At maximum acceleration
A - B 1200 ΩΩΩΩ
±
20% 1200
ΩΩΩΩ±
20%
A - C 1400 ΩΩΩΩ
±
20% 2000
ΩΩΩΩ±
20%
B - C 2000
ΩΩΩΩ
±
20% 1200
ΩΩΩΩ±
20%
Can purging valve SAGE M
Supply voltage = + 12V
R = 26 W
± 7% at 23 °C
O xygen sensor NGK
For EURO 96 : one oxygen se nsor mounted
upstream of the catalyst. Generate d voltage at 850 °C:
- rich mixt ure : min 850 mV
- poor mixture : max 100 mV
He ating resistance at 23 °C : 6 W
± 1
For EURO 00 : two oxygen sensors mounted
one upstream and one downstream of the catalyst.
Generate d voltage at 850 C:
- rich mixt ure : min 850 mV
- poor mixture : max 100 mV
He ating resistance at 23 °C : 3.3 W
± 0,7
Atmos pheri c DE L CO E L ECT RONICS
pres s ure s en s or
Stopped engine – shows atmospheric pressure 950......1050
mbars
Idling running engine – 330
± 40 mbars
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ENGINE E7J-26212
12 - 5
F UEL M IXTURE
TIGHTENING MOMENT (d aN m)
Inlet manifold nuts and screws 2,5
Inlet manifold
32 5 7
416
3
1
42
DISMOUNTIN G
Place the vehicle on a two-columns
elevator. Disconnect the battery.
Dismo unt :
- the air filter assembly;
- the acceleration cable from the body
control lever; - the injection ramp ( see c hapter 13
“Injection ramp”).
Disconnect the electric connectors:
- body position potentiometer ( 1)
- atmospheric pressure sensor (2)
- step-by-step engine (3);
- air temperature sensor( 4)
Disconnect the fuel supply ducts (supply and return)
Disconnect the petrol vapors re-aspiration hose from the inlet manifold.
Uncouple the body control lever and remove the valve body.
Dismount the attachment nuts and screws of the inlet manifold.
Extract the inlet manifold .
REMOU NT I NG
Replace the inlet manifold gaskets.
Tighten at the required moment the inlet manifold nuts and screws, observing the sequence
shown in the drawing.
Perform the dismounting operations in the reverse order.
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MOTEUR E7J-26213
FUEL SUPPLY
13 - 1
REMARK:
Only vehicle observing the de -pollution norm EURO 00 are equipped wi th shock
se nsor.
Supply int erruption
1
PURPOSE
To avoid the fire hazard due to the fuel losses, that may occur in case of an accident.
OPERATION
The hazard sensor ( 1) is placed in the engine compartment, being mounted on the left shock
absorber column.
In case of shock, the sensor ball l eaves its lodgement, t hus interrupting the electric c ircuit
between the control relay of the petrol electric fuel pump and the electric petrol pump.
HAZARD SENSOR RE-STARTING
The upper part of the hazard sensor is to be pushed to re-position the ball i nto its lodgement
and thus to re-start the sensor.
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ENGINE E7J-26216
16 - 6
ALTERNATOR – STARTER
ENGINE STARTER
E7 J - 262 D 907 - M00 2T 13581
IDENTIFICATION
DIAGNOSTIC
Special tool : CLIP tester – TECHNIC for measuring the battery voltage and the absorbed
intensity in the starting stage.
OPERATION ABNORMALITIES THAT MIGHT BE NOTICED
- Battery failure = large voltage drop on starter during engine starting stage.
- Blocked starter = the absorbed current is very high.
- Solenoid failure = the absorbed current is very low.
In order to perform the measurements, it is necessary the engine drive by means of the starter,
but stopping the engine starting.
To do that, disconnect the RPM sensor (located on clutch casing).
REMARK:
After performing this checking, erase by means of the CLIP tester, the possible failures
memorized by the computer.
St arter
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IGNITION AND INJECTION
17
17 - 1
PRESENTATION
The system is composed of : -electronic control unit (UCE injection);
-a double ignition coil;
-f our spark plugs;
- spark plugs cables.
OPERATING PRINCIPLE
Subject to the information received from different sensors, but mainly subject to engine RPM
and charge, the electronic control unit will establish the advance at ignition, will identify the cylinders
being at upper dead point and consequently , will control the corresponding coil to them.
This is producing the spark at the level of the two cylinders being at upper de ad point,
interrupting the mass connection of the corresponding coil.
Ignition system
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IGNITION AND INJECTION
17
17 - 5
ELEMENTS LOCATION
1. RPM sensor ( tightening moment : 0.8 daNm);
2. Water temperature sensor (tightening moment: 2.5 daNm);
3. Atmospheric pressure sensor;
4. Step-by-step engine for idling adjustment;
6. Air temperature sensor;
7. UCE injection;
8. Choke sensor;
9. Fuse and relays box;
10. Air filter;
11 .D etonation sensor (tightening moment: 2.5 daNm);
12. Oxygen sensor (tightening moment: 4.5 daNm);
13. Ignition coil;
14. Carbon canister with purging valve included;
15. Power steering pressure controller(tightening moment: 1.2 daNm);
16. Air conditioning pressure controller (tightening moment: 0.8 daNm).
Injection system
13 10 11 5 4 6 3 2 1 8 9
14 1 6 15 12 7
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IGNITION AND INJECTION
17
17 - 6
7. UC E inj ection;
8. Choke sensor;1. R PM sensor;
2.
Wa ter temperature sensor;
Injection system
8
7
2
1
4
5
63
3. At mospheric pressure sensor;
4.
St ep- by - st ep engin e for idli ng
adjustment
;
5.
Valve position po tentiometer;
6.
A ir temperature sensor;
;
13. Ig nit ion coil;
13
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IGNITION AND INJECTION
17
17 - 7
Injection system
In the fuse box located in the engine compartment, the following relays may be identified:
A. Co mpressor relay
B. Engine c ooling fan relay, step I
C. Engine cooling fan relay, step II
D. UCE injection relay, canister-purging valve
E. Fog projectors relay
H. Fuel pump and ignition coil relay
14. C arbon canister with purging valve
included
;
16.
Power steering pressure controller; 12.
Oxygen sensor;
15.
A ir conditioning pressure controller.
1
15
12
1614
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