Table 8,
Trouble- shooting Chart
If these
complaints occur, check the indicated test steps in more detail.
Customer
complaint
Starter
turns, engine starts poorly or not at all
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Engine starts
and stalls again
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Idling problems
(engine speed, exhaust gas)
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Poor throttle
response, transition faults
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Misfiring
(ignition, injection)
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Engine
output/top speed too low
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Fuel
consumption too high
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Engine
diesels
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Engine pings,
knocks
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Engine gets
too hot
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Engine stalls
at traffic lights
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Fault lamp
illuminates permanently or temporarily
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Possible cause
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Test step no.:
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Trouble codes
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·
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·
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BATTERY VOLTAGE
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01
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49
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·
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DIAG.
REQUEST, read out trouble code
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02
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IMMOBILISER
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03
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83
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IMMOBILISER SIG.
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04
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83, 84, 85
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·
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·
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·
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·
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·
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·
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·
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·
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TPS SIGNAL
|
05
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21, 22
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·
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·
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·
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·
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·
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·
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·
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MAP SENSOR
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06
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33, 34, 43
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·
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·
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·
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·
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·
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·
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·
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·
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COOLANT TEMP.
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07
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14, 15
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·
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·
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·
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·
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·
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·
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·
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·
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INTAKE AIR TEMP.
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08
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69, 71
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·
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·
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·
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A/C INFORMAT. SW
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09
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-
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·
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·
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·
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A/C LOAD SIGNAL
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10
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-
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·
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·
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·
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PARK/NEUTRAL SW.
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11
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-
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·
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·
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·
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·
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FUEL PUMP RELAY
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12
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28, 29, 32
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·
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·
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CLEAR FLOOD MODE
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13
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-
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·
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·
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·
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·
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·
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·
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·
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·
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SPARK ADVANCE
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14
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41, 42, 63, 64
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·
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·
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·
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·
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·
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·
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·
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·
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KNOCK VOLTAGE
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15
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16, 18
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·
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·
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·
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KNOCK PULSES
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16
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16, 18
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·
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·
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·
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KNOCK CELL NO.
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17
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-
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·
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·
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·
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KNOCK RTD. CYL.1
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18
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16, 18
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·
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·
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·
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KNOCK RTD. CYL.2
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19
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16, 18
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·
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·
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·
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KNOCK RTD. CYL.3
|
20
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16, 18
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·
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·
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·
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KNOCK RTD. CYL.4
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21
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16, 18
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·
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SEC.AIR PUMP REL
|
22
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52, 53
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·
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AIR CONTROL SOL.
|
23
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56, 57
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·
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·
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·
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·
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·
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·
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·
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·
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·
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EGR POSITION CMD, EGR POS. FDBK
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24, 25
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43, 47
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·
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·
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·
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·
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·
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·
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FUEL TANK VENT.
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26
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61, 62
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·
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·
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·
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·
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·
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·
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O2 SENSOR, O2 SENSOR LOOP, O2
SENSOR LOOP, O2 INTEGRATOR,
O2 BLM CELL NO., O2 BLM CELL CONT
|
27, 28, 29, 30, 32, 33
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13, 44, 45
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·
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·
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·
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·
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·
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·
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O2 BLM ENABLE
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31
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13, 35, 44, 45
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·
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·
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·
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·
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·
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ENGINE SPEED
|
34
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19, 35
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·
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·
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DESIRED IDLE, DES. IDLE ADJUST, IDLE ADJUST, DESIRED IDLE P- N, IDLE
ADJUST P- N, DES. IDLE DRIVE,
IDLE ADJ. DRIVE
|
35, 36, 37, 38, 39, 40, 41
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-
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·
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·
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·
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·
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·
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·
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·
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IAC CNTR. ENABLE
|
42
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35
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·
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·
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·
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·
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·
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·
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·
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IDLE AIR CONTROL
|
43
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35, 66
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·
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·
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·
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·
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·
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·
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·
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·
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·
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INJECTION PULSE
|
44
|
17
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·
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·
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·
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·
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·
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·
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VEHICLE SP.PULSE, VEHICLE SPEED
|
46, 47
|
24
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·
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·
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·
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·
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·
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·
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·
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TORQUE CONTROL
|
48
|
75, 76
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·
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·
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·
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·
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·
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·
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POWER ENRICHMENT
|
49
|
-
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·
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·
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·
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·
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·
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A/C RELAY
|
50
|
87, 88
|
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·
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·
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·
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DEC. FUEL CUTOFF
|
51
|
-
|
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