Principle Functioning - A.E.B. 628127000 Manual Instrucciones De Montaje

The emulator with code 628127000 has been creating to maintain
constant the tension of the petrol pressure sensor on the vehicles that
memorize a crash of the same sensor while running on GAS mode.
The emulator is connected while running on GAS mode and, emulating
the signal of the petrol pressure, it makes perceive it constant to the
petrol injection ECU.
Acting this way, it's possible to avoid problems of ignition of the check-
engine warning light and the drift of the calibrators.
While running on petrol mode, the emulator disconnects in an automatic way.
The emulator has a trimmer which allows it to adapt to the different
pressure sensors assembled on the vehicles.
In order to calibrate the trimmer it's important to follow the dedicated
procedure considering the kind of petrol pressure sensor that has been
installed.
1) Using a digital multimeter, verifing the tension on the 3 wires of
the petrol pressure sensor with the engine on and the CONNECTOR
INSERTED.
2) The wire on which the green wire of the emulator will be connected,
will have a tension between 2 and 3,5 volt variable basing on the petrol
pressure; while speeding up it will be noted the change of this tension.
The other 2 wires that are on the petrol pressure sensor, will have one a
tension of 5 volt and the other a tension of 0 volt (ground).
1) Using a digital multimeter, verifing the tension on the 4 wires of
the petrol pressure sensor with the engine on and the CONNECTOR
INSERTED.
2) The wire on which the green wire of the emulator will be connected,
will have a tension between 2 and 3,5 volt variable basing on the petrol
pressure; while speeding up it will be noted the change of this tension.
The other 3 wires represent the following wires:
- A FEEDING WIRE with tension of 5 volt
- A GROUND WIRE with tension of 0 volt.
- A WIRE OF PETROL TEMPERATURE SIGNAL with a fix tension
between 1÷2 volt.
190100548 Rev. 270411-0

Principle functioning

PRESSURE SENSOR WITH 3 WIRES
PRESSURE SENSOR WITH 4 WIRES
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