Page 94 of 891
16ENGINE E7J-262
16 - 7
ALTERNATOR – STARTER
TIGHTENI NG MOMENTS (daNm)
Starter attachment screws 4.4
Control bar attachment screw
on ge arbox connecting rod 2.7
DISMOUNTIN G
Place t he vehicle on a two-column elevator.
Disconnect the battery.
Dismount the attachment nuts of the gazes exhaust vessel.
Dismount the hoses support attachment nut on the engine lifting support.
Dismount the control bar attachment screw on the gearbox connecting control rod (recover
the bushing). Dismount the starter attachment screws (1).
Suspend the vehicle.
Disconnect the starter electric connectors.
Remove the starter through the lower part of the engine compartment.
R EMOU NT I NG
Perform the dismounting operations in the reverse order.
Tighten the screws and nuts to the required moment.
Fill the protection bellows of the gearbox connecting rod joint, with grease Molycote 33M –
10 ml.
St arter
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Page 98 of 891
IGNITION AND INJECTION
17
17 - 4
Injection system
CHARACTERISTICS
• Electronic control unit (UCE injection) with 90 pins SIEMENS.
• Sequential multi-poin t injection.
• Controlling one injector each time.
• Static ignition with a double ignition coil.
• Canister purging valve controlled in opening duty cycle.
• Idling regime correction subject to:
- climate maintenance (air conditioning);
- battery voltage.
• Maxima l regime:
- 6200 rot/min for first, second and third speed;
- 6000 rot/min for fourth and fifth speed.
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IGNITION AND INJECTION
17
17 - 9
ANTI-STARTING INDICATOR
When setting the contact on, UCE injection is receiving from UCE DECODER a code, whi
ch is compared
with the one previously memorized; if the two codes are matching, then the engine starting is author ized.
After contact setting on, anti-starting indicator which was previously blinking, will light for
three seconds then it will go off, confirming in this way, the key recognizing.
If the key is not good, after setting on the contact, the anti-starting indicator will start blinking
faster and the engine starting will be impossible.
OBSERVATION:
For details regarding the vehicle anti-starting system, see chapter 82 “Anti-starting system”.
AT T E N T I ON!
U CE injection c onnecting or disconnecting to t he vehicle’s wiring i s to be pe rformed
Injection system
only when the engine is stopped and t he contact off.
If the contact is on or the engine is running, do not loosen or disconnect the battery
terminal s. It is forbidden the battery replacement on t he vehicle i f the engine is running
or the contact on. Loosen or rusty contacts at battery terminals and imperfect connections at the
injection system wiring are not allowed. It is forbidden the engine starting with the battery connected to a charging / starting
unit. The battery recharging is t o be pe rformed only aft er disconnecting it from the vehicle
wiring and by means of a c harging unit with 12 V v oltage.
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Page 106 of 891
IGNITION AND INJECTION
17
17 - 12
IDLING REGIME CORRECT ION SUB JECT TO B ATTERY VOLTAGE AND TO
ELECTRI C BA LANCE ON VEHICL E.
Th is correction is dedicated to the compensation of the voltage drop due to the electric consumers
starting, when the battery is weaker charged. In this purpose, engine RPM is increased, allowing in
this way the alternator rotation increase and consequently of the battery voltage.
More the lower is the voltage, more important the applied correction is. So, a variable correction
is applied, starting when voltage is reaching 12,8 V. The correction is starting from the nominal
idling RPM and may increase with maximum 150 rot/min additional.
Idling regime correction
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IGNITION AND INJECTION
17
17 - 30
AFTER
REPARATION
Perform the operations from “recommendations” for repara tion confirmation.
Fix a ny other possible failures.
Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
C heck the battery and electric mass condition of the veh icle.
Fi x if necessary.
C heck the connection and the connector condition of the actuator s relay .
C hange the connector if necessary.
C heck the presence of +12 Volts at pin 1 actuators relay.
Fi x if necessary.
C heck the actuators relay coil.
R eplace the actuators relay if necessary.
C heck the insulation and continuity on line
Pin 39 injection computer > pin 2 actuators relay.
Fix if necessary
If the problem is persisting after these checking, fix the other failures the n perform the conformity
checking.
RE CO MMENDATIONS
Conditions for diagnostic appl ication for memorized failure:
Set t he contact on then enter in dialog with the injection computer by means
of the CLIP tester.
REMARK: This failure is of high importance. It is then necessary to be
tr eate d before the following ones.
Diagnostic – Failures interpretation
DF009
P RESENT
OR
ME MO RIZEDACTUATORS RELAY CONTROL CIRCUIT
1DEF : Open circuit or short-circuit
CO : open circuit
CC.O : s hot circuit at mass
CC.1 : s hort circuit at + 12 V.
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Page 125 of 891
IGNITION AND INJECTION
17
17 - 31
DF012
P RESENT
OR
ME MO RIZEDINJECTION > AC CONNECTION
No comments failure
RE CO MM ENDATIONS
Conditions for diagnostic appl ication for memorized failure :
Failure is declared present further to a 10 seconds timing with engine running
and climate control under operation, state ET009: active (during test, battery
voltage must be not under 11 V).
AF TER
REPARATION Pe
rform the operations from “recommendations” for reparation confirmation.
Fi x any other possible failures.
Erase the failures memoriz ed by the injection computer.
Pe rform a conformity checking by means of the CLIP tester.
Diagnostic – Failures interpretation
Connect the 90 ways terminal box instead of the injection computer then check the insulation,
continuity and absence of the parasite resistance on line 32 of the injection computer.
Fi x if necessary.
Re fer to climate control diagnostic if the incident is persisting.
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Page 152 of 891

IGNITION AND INJECTION
17
17 - 58
DF 271 ACTUATORS RELAY EXIT VOLTAGE
P RESENT 1. DEF Open circuit or short-circuit
OR
ME MO RIZED
Conditions for diagnostic appl ication at memorized failure:
Se t the conta ct off and wait until the communication with the computer
is lo st.
RECOMMEND AT IONS
REMARK : If failure “DF009 : Actuators relay control circuit” is
prese nt or memoriz ed, it must be treated as most important, because
th is could be the cause of the failure occurring.
C heck the condition of the battery and of the vehicles electric masses.
M end if necessary.
C heck the connection and condition of the actuators relay connector .
Re place the connector if necessary.
Check with the contact set on, the pr e se nce of the +12 V supply at pole 3 of th e actuators relay.
Fi x the electric routing on the line towards the corresponding fuse .
C heck with the contact set on, the presence of +12 V supply at pole 5 of the actuators relay.
Repl ace the relay if necessa ry
C heck the insu lation and continuity on the line:
Pin 66 injection computer > p ole 5 actuators relay
M end if necessary.
Disconnect one by one the elements (injector, canister purging valve…) and observe the +12 V
s upply at the exit pole 5 of the actuator s relay, in order to identify the damaged one .
Replace the damaged el ement.
P erform the operations from ” recommendations” for reparation confirma tion.
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
Diagnostic – Failures interpretation
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IGNITION AND INJECTION
17
17 - 59
DF 345SUPPLY + 5 VOLTS POTENTIOMETERS AND SENSORS
P RESENT 1. DEF Open circuit or short-circuit
RECOMMEND AT IONS Check with the contact set on, the parame ter “PR004: computer
su pp lying voltage” ( measur ed voltage at battery: about 12 volts).
- if at limit the value is of 16 volts, it means there is a short-circuit at
mass.
- if at limit the value is of 10.7 volts, it means there is short-circuit at
+ 12 volts of one one of th e supply ways +5 volts
Ch eck the connection and condition of the connectors of the valve potentiometer, manifold pressure
s ensor and refrigerant fluid pressure transduc er 9if the re is on the vehicle ).
R eplace the connector/c onnectors if necessary.
Disc onne c t one by one, the following transduc e rs, if they a re passing from sta te prese nt to
me mo rized: valve potentiometer, manifold pressure transduc er and refrigerant fluid pressure
t ransducer (if there is on vehicle).
Treat the failure from the transducer, if necessary.
Check the insu lation ,continuity and the absence of the parasite resistance on lines:
Pin 74 injection computer > pin B valve potenti ometer
Pin 78 injection computer > pin C manifold pressure transducer
Pin 83 injection computer > pin B refrige rant fluid pressure transducer (if there is).
M end if necessary.
If the problem is persisting after these checking, treat the others failures then perform the conformity
checking.
Pe rform the operations from “recommendations” for reparation confirma tion
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
Diagnostic – Failures interpretation
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