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Contents:
4. Wiring diagram and installation remarks
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1. Technical data
Supply voltage:
12V ±25%
Operating temperature:
-40°C ÷ +70°C
Protection Class:
IP40
2. Applications
The FPE-A fuel pressure emulator equipped with autoadaptation functionality is designed for
use in a wide range of vehicle models, in which errors related to the pressure controller circuit in
the fuel rail or high/low rail pressure occur during operation of the engine fuelled by LPG/CNG.
It is compatible with the following vehicle models:
Volvo: S40, S60, S60R, S80, V70, XC60, XC70, XC90
Opel: Astra , Insignia
Chevrolet: Captiva
Exact versions of supported models are listed in the following sections.
3. Operating principle
When the engine is fueled by LPG/CNG, there is no supply of petrol from the rail, so the rail
pressure is not changing as expected by the petrol ECM. This is interpreted as an error in the
pressure control circuit. As a consequence, the ECM shortens the injection time pulses and/or
reports a failure that may make continuation of driving impossible. The FPE-A works with the
regulator circuit and solves the problem. After installation and the first start-up, the activated
adaptation function selects the parameters and emulation mode for a given car in an automatic
mode. The settings are stored in system non-volatile memory and can be modified only with
another adaptation cycle.
4. Wiring diagram and installation remarks
The supplied universal emulator harness should be connected in accordance with the indicated
wiring diagram and recommendations of the table with versions dedicated to specific cars. The
location of emulator installation depends on the wiring diagram for a specific version and
configuration of the fuel pressure control system.
