Installer's handbook - 1/3 Types of installation - 2/3 Software guide ...

If using the two-connector
ECU, a second part of harness will
be necessary, to fit a 24-way connector
(picture 40).
Two types 5,6,8-cylinder harness
are available: one for vehicles
up to 6 cylinders and the
other for vehicles up to 8 cylinders.
Shielded conductors have been
used to comply with the EMC standards.
The connectors present on
the harness are waterproof, except
for the one of the changeover switch
that is placed in the passenger
compartment and is therefore protected
from water. As regards the
connections of wires and harness
connectors you should refer to
chap. 6 of the present handbook.
NOTE: as the 56 poles connector
used in SEQUENT system is
the same used for Flying Injection
one, considering the similarity of
the external structure of both
systems ECUs, it is possible to
mistake the two ECUs and using
the wrong one for the wrong
system.
Such an error is to be
accurately avoided, because
it can cause the damaging of
the original components of the
vehicle.
Both the main harness (picture
38) and the 5,6,8- cylinder harness
(picture 40) are both available in
the Keihin injectors’ version and in
the BRC injectors one. It is recommended
not to invert such harnesses.
On the other hand, the main
harness for Sequent Fastness
application is available only for BRC
injectors so that you have to pair
the suitable 5-6-8 cylinder harness
with BRC injectors.
4.20 NORMAL WP “ET98”
LPG SOLENOID VALVE
The LPG solenoid valve used in
the SEQUENT system is a waterproof
type (with watertight connec-
tors) and is an evolution of the wellknown
LPG BRC ET98 solenoid
valve, from which it can be externally
distinguished for the white galvanising
(picture 41). Inside the
LPG solenoid valve, the filtering
system has been improved, in particular
for the iron-magnetic particles.
Due to the precise working of
the injectors, it is compulsory to use
this kind of solenoid valve, in the
whole assembly of SEQUENT.
4.21 SUPER WP “ET98”
LPG SOLENOID VALVE
The Super WP “ET98” solenoid
valve is an interception device for
LPG necessary and designed to
grant higher performances compared
to previous ones. An improved
coil allows a more efficient opening
power with the same current. This
permits to have bigger passage
sections and a higher LPG flown.
25
Picture 39
Fly SF ECU main
harness for
Sequent Fastness
applications
Picture 40
5-6-8-cylinder FLY
SF ECU connection
harness
Even in this case the solenoidvalve
has been conceived to allow the
feeding of high power engines keeping
a high filtering grade. With
waterproof connectors, the solenoidvalve
body is brass colour
without external covering while the
coil is red (picture 42).
4.22 “VM A3/E” CNG ELEC-
TRO-ASSISTED VALVE
The “VM A3/E” CNG electroassisted
valve used in the
SEQUENT system is of the waterproof
type (with watertight connectors)
and is an evolution of the wellknown
CNG VMA3/E solenoid valve
(picture 43)
The valve, that is usually installed
inside the engine compartment
along the pipes connecting the
CNG cylinder/s to the reducer, if
combined to the IM series CNG filling
adapter, allows refuelling and,
at the same time, the free passage