AEM 30-3510 Infinity Plug & Play Harnesses - BMW 2001-2006 E46 M3 - Manual (Page 6)

6
© 2014 AEM Performance Electronics
P/N 30-3510
Available I/O Typical Use Notes Component Wiring
MAP (Manifold
Press)
Manifold pressure is used
for speed density fuel
calculation, ignition timing
correction, 02 feedback,
boost control, variable
valve control, ancillary
outputs, etc. Electronic fuel injection
is calculated in absolute
pressure not gauge
pressure. AEM carries MAP
sensors (sold
separately).
How ever, the Infinity
can accept any 0
–
5V pressure sensor
and can be
calibrated in the
Infinity Tuner
softw are.
This should be w ired
directly to the MAP
sensor's signal pin.
Ethanol Sensor This is used for customers
w ho are converting their
vehicle to utilize ethanol
fuels such as E85 or E98. This digital input can be
used for other functions
as w ell. The GM Fuel
Composition Sensor
(FCS) is the most
commonly used for
converting a vehicle
to flex fuel. This pin needs to be
w ired directly to the
signal pin of the fuel
composition sensor.
Boost Control
Solenoid
This is used to operate a
12V PWM solenoid. Boost control solenoids
can be normally open
(NO) or normally closed
(NC). This w ill change
the duty cycle strategy
but is also depends
upon how the
w astegate is plumbed
w ith hoses. AEM carries boost
control solenoids
(sold separately).
How ever, the Infinity
can control most
factory boost control
solenoids. Solenoids have tw o
w ires and have no
polarity.
Pow er from
Relay
Can be used for many
things, how ever, this 12V
source w as implemented
to be paired w ith the
Boost Control Solenoid. This 12V is coming
through the vehicle's
main relay. Because of using
shared pow er, this
should only be used
for low current
electronics. N/A
High Side
Output
Can be used to activate the
12V side of a solenoid If attempting to drive a
component over 4amps,
a relay must be used. The Infinity can
directly drive an
electronic
component up to
4amps max, such as
a boost solenoid. For a relay, this
should be w ired to
terminal 86 (or 85).
Supply chassis
ground to the opposite
terminal 85 (or 86). If
directly driving a low
current component,
w ire this to the 12V
terminal.
Boost Target
Trim Selector
Input
Can be used for to trigger
multiple boost targets. This analog input can be
used for other functions
as w ell. AEM 12 Position
Universal Trim Pot
(or typical
potentiometer). Can
also be used w ith
any simple ON/OFF
sw itch. This w ire should be
routed to the signal
output of the
component. If used
w ith a simple ON/OFF
sw itch, route the
opposite terminal to an
Infinity sensor ground.