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Intake Manifold Absolute Pressure (MAP) Sensor > < Crankshaft Impulse Sensor, Petrol and Z19DT

Corsa C

Injector (Multi-point Fuel Injection), all except Z22YH

 

Objective:

Check control and operation of the injector.

Measurement:

Injector control signal.

Preparation:

Engine oil temperature greater than 80°C . Switch off all electrical loads. Switch off the engine and ignition.

Connections:

INPUT A

COM/TRIGGER

INPUT B

Connect the red measurement lead to the control wire of the connection plug of the injectors according to the table below. Connect the black ground lead to ground.

 

 

Engine

Control wire colour

F4R

Y9.1=GY, Y9.2=PK, Y9.3=BN, Y9.4=WH

Z10XEP

Terminal 2

Z14XEP

Terminal 2

Y22SE

Y9.1=GNWH, Y9.2=GNRD, Y9.3=GNOG, Y9.4=GN

Z20NET

L2A=BK, L2B=GNBK, L2C=PKBK, L2D=BUBK

6VD1

terminal A

Other engines

BNXX

Procedure Tech 31:

1. Download Reference curve.
2. Start the engine and allow it to idle.

Note:   For the Z16YNG engine it is important to switch the engine to petrol mode before the measurement is started.

Reference Curve:

 Object Number: 2400967 Size: DEFAULT

This multi-point fuel injection system is a conventional fuel injection system with a cut-off control system. In this case, the signal plot only has one voltage spike.

If the voltage spikes vary considerably, the horizontal scaling factor can be increased to 500 micro-seconds/DIV to stabilise the display of the signal plot.

Procedure Tech 32:

1. Download Setup file (the Tech 32 uses only Setup files, no reference curves).
2. Start engine and allow it to idle.

Note:   For the Z16YNG engine it is important to switch the engine to petrol mode before the measurement is started.

Setup File:

Reference Curve:

 Object Number: 2419075 Size: DEFAULT

This multi-point fuel injection system is a conventional fuel injection system with a cut-off control system. In this case, the signal plot only has one voltage spike.

If the voltage spikes vary considerably, the horizontal scaling factor can be increased to 500 micro-seconds/DIV to stabilise the display of the signal plot.

Intake Manifold Absolute Pressure (MAP) Sensor > < Crankshaft Impulse Sensor, Petrol and Z19DT