Page 7 of 279
17B-7V2 MR-376-X76-17B050$040.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
For flex-fuel engines
1. Air filter
2. Motorised throttle valve
3. Injection air temperature sensor
4. Manifold pressure
5. Injectors
6. Ignition coils
7. Injection coolant temperature sensor
8. Pinking sensor
9. TDC sensor
10. Upstream oxygen sensors
11. Downstream oxygen sensors
12. Injection computer
13. Auxiliary cold starting system
14. Auxiliary fuel tank
15. Auxiliary fuel
16. Petrol/alcohol tank
17. Petrol pump
18. Bleed valve
PETROL INJECTION
Fault finding – Operating diagram
Page 13 of 279

17B-13V2 MR-376-X76-17B050$060.mif
PETROL INJECTION
Fault finding – Replacement of components17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Programming the alcohol level
– Put the vehicle under + after ignition and wait for the value of parameter PR064 Coolant temperature to be greater
than or equal to 80°C.
– There must be no present or stored faults.
– With the ignition on and engine stopped, note the value of PR743 Estimated alcohol level in the tank.
– Carry out resetting using command RZ064 Programming the alcohol level.
– Start the engine and allow the engine to idle for 5 minutes.
– Check the correct programming using parameter PR743; its value must have changed.
– If programming was not performed correctly, repeat the operation from the start.
– If the fault is still present, contact the Techline.
Injection computer initialisation
Start and stop the engine to initialise the computer and wait for the loss of communication message to appear on the
diagnostic tool. If the message does not appear, wait for 9 minutes.
The computer is automatically configured according to the sensors and options present on the vehicle.
If the data were not saved before the operation, carry out the following operations:
– Programming the VIN code
– Enter the V.I.N. using command VP010 Enter VIN.
– Injector programming
Program the injectors by accessing the sub-section entitled Injector replacement operations.
– Programming the TDC sensor
Program the TDC sensor by accessing the sub-section entitled TDC (Top Dead Centre) sensor replacement
operations.
– Programming the motorised throttle
Program the motorised throttle by accessing the sub-section entitled Throttle valve replacement operations.
– Injection computer initialisation
Start and stop the engine to initialise the computer and wait for the loss of communication message to appear on the
diagnostic tool, if the message does not appear, wait for 9 minutes.
The computer is automatically configured according to the sensors and options present on the vehicle.
Page 181 of 279
17B-181V2 MR-376-X76-17B050$120.mif
PETROL INJECTION
Fault finding – Parameter summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Tool
ParameterDiagnostic tool title
PR344 Pressure sensor voltage
PR427Average pinking signal
PR429Measured throttle position
PR444Integral idling speed regulation correction
PR446Upstream O2 sensor heating resistance
PR447Downstream O2 sensor heating resistor
PR448Ignition advance
PR469Cylinder 1 pinking value
PR471Cylinder 2 pinking value
PR473Cylinder 3 pinking value
PR475Cylinder 4 pinking value
PR492Motorised throttle position setpoint
PR538Measured throttle voltage, gang 2
PR539Measured throttle voltage gang 1
PR606Adaptive idling speed correction
PR624Richness regulation programming offset
PR625Richness regulation programming gain
PR743Alcohol level estimated in the tank
PR770Camshaft offset
PR814Number of active heating resistors
PR831Combustion misfiring counter
Page 213 of 279

17B-213V2 MR-376-X76-17B050$140.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
*TDC: Top Dead Centre
**GMV: fan assemblyTool
commandDiagnostic tool title Comments
RZ001 Fault memoryThis command is used to clear the faults stored in the computer.
RZ003 Engine adaptivesThis command enables a long engine start time.
RZ031 Throttle stop programmingThis command is used to reset the necessary system adaptives
if replacing the throttle valve.
RZ033Richness regulation
programmingThis command is used to reset the necessary system adaptives
if replacing the injectors.
RZ037Flywheel target
programmingThis command is used to reset the necessary system adaptives
if replacing the TDC* sensor.
RZ064Programming the level of
alcoholThis command is used to count the richness adaptive
programming necessary when replacing the injection computer.
AC005 Cylinder 1 injectorThis command is used to perform an audible check on injector 1.
AC006 Cylinder 2 injectorThis command is used to perform an audible check on injector 2.
AC007 Cylinder 3 injectorThis command is used to perform an audible check on injector 3.
AC008 Cylinder 4 injectorThis command is used to perform an audible check on injector 4.
AC015 Fuel pump relayThis command is used to check the fuel pump.
AC017Canister bleed solenoid
valveThis command is used to check the canister bleed solenoid
valve.
AC027 Motorised throttleThis command is used to check the motorised throttle.
AC038 Low speed GMV** relayThis command is used to check the low speed GMV** relay.
AC039 High speed GMV** relayThis command is used to check the high speed GMV** relay.
AC180Air conditioning
compressor relay controlThis command is used to check the air conditioning compressor
relay.
PETROL INJECTION
Fault finding – Command summary table