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BACK
ZENIER/BCC/FCD
installation
By
Robert Pina
There is more often then not, the need to put in an FCD/BCC fuel cut mod into
your car, but the documents are either missing, or not handy. We also have
added Zenier fuel cut information. Here we hope
to cover any and all materials and notes.
Function:
The FCD
becomes easy to install when you understand what it does. The boost sensor
in your car reports a voltage to the ECU. When the ECU senses 4.4 volts,
it will cut the fuel (fuel cut), and cause you to lose power. The FCD will
intercept this voltage and put out a lower figure to the ECU, so that fuel cut
cannot happen. The PIM wire tells the ECU the voltage, which must be
cut. Each end of the PIM wire goes into the FCD so that the voltage can be
altered. Only the PIM wire would be cut, the others would be
"tapped", by connecting the wires to the harness, but not cutting
them.
FCD
Wiring:
Zenier
Diode:
Where
does it go?
You
must cut the PIM wire, and put the zenier diode between the 2 wires, making the
connection bridged again. To find the PIM wire, see the wire colors and
diagrams below.
Which
one do you buy?
4.3V
400mw (milliwatt) Zenier Diode
Greddy BCC:
What do the
Greddy wires mean?
GREEN - goes to the cut ECU side (PIM
wire)
WHITE - goes to the cut harness side
(PIM wire)
BLACK - ground
(E1)
RED - IG power (+B)
HKS FCD
What do the
HKS wires mean?
YELLOW - goes to the cut ECU side (PIM
wire)
WHITE - goes to the cut harness side
(PIM wire)
BLACK - ground
(E1)
RED - IG power (+B)
notes:
Suggested FCD setting for 3sgte is 7 on the dial
SuperChips
What do the
SC wires mean?
GREEN - goes to the cut ECU side (PIM
wire)
YELLOW - goes to the cut harness side
(PIM wire)
BLACK - ground
(E1)
RED - IG power (+B)
notes:
Suggested FCD setting for 3sgte is 7 on the dial
ECU
Diagrams:
ST165:
ST185
ECU
diagram needed
MR2
turbo:
Wire
Colors:
ST165:
ST185:
E1 -
Brown
+B -
Black / Yellow Stripe
PIM -
Red / White Strip
MR2
turbo:
E1 -
Brown
+B -
Black / Yellow Stripe
PIM -
Light Blue
Thanks
to mr2.com and the GT4 list for some of the information!
Thank
you to Josh McLain for nudging me to make the page!!
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