Important infinity-8h information, Infinity connectors – AEM 30-3509 Infinity Plug & Play Harnesses - Honda/Acura OBD2B User Manual
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1999–2001 Honda B-H-D Series OBD2b
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© 2014 AEM Performance Electronics
*IMPORTANT INFINITY-8H INFORMATION
The primary difference between the 30-7106 Infinity-6 and 30-7108 Infinity-8h is that the 8h lacks Peak
& Hold injector drivers to run low impedance fuel injectors. High impedance (saturated, high-z) fuel
injectors must be used with the Infinity-8h.
The Infinity-6 and Infinity-8h share a common pinout with the exception of four pins where the Infinity-8h
has two each additional fuel injector and ignition coil drivers. Due to the additional fuel injector and
ignition coil drivers, the 8h has two fewer digital inputs and lowside outputs. Use of this harness with an
Infinity-8h will require slight modification and could result in loss of some plug and play function.
Infinity
Pin
Infinity-6
Function
Infinity-8h
Function
30-3509 PnP
Honda Pin
Notes
C1-3
Lowside6
Injector7
B16
LS6/IAB on Infinity-6 or Injector7 on Infinity-8h
C1-4
Lowside7
Injector8
D2
Available LS7 on Infinity-6 or Injector8 on Infinity-
8h
C1-31
Digital6
Coil7
Aux - 6
Turbo Speed [Hz] input on Infinity-6.
** Must de-pin for use with Infinity-8h, Coil7 not
used**
C1-32
Digital7
Coil8
Unpopulated
Available Digital7 on Infinity-6, Coil8 not used on
Infinity-8h.
INFINITY CONNECTORS
The AEM Infinity EMS uses the MX123 Sealed Connection
System from Molex. AEM strongly recommends that users
become familiar with the proper tools and procedures for
working with these high density connectors before attempting
any modifications. The entire Molex MX123 User Manual can be
downloaded direct from Molex at: