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INSTALLATION INSTRUCTIONS

SAVES AND TRANSFERS

Changes made to the LS Ignition Controller via MSDView are in real time. You can create and save

numerous different files to your PC and load them back into the unit for different applications.

The following will go through a general description of the software for the LS Ignition Controller.

OPTIONAL CONNECTIONS

MAP INPUT: This is the Manifold Absolute Pressure sensor that is integral to the unit. It

uses a 1/4” Camozzi fitting and is rated at 2.5 Bar. Using it can advance your timing under

engine vacuum and retard it under boost. It is recommended that you use it, but not required

unless you are using forced induction.

COOLANT TEMPERATURE: This will monitor engine temperature. It has the ability to ad-

vance the timing while the engine is cold and retard it when it gets hot, helping to prevent

engine damage. It is not required for the unit to function properly and leaving it disconnected

will not advance or retard the timing relative to the base settings. The ECT Diagnostic will

pop up, but will have no ill effect on the controller’s functionality.

PROGRAMMABLE FEATURES, SETTINGS AND DATA ACQUISITION

SETTINGS

These are basic settings that should be configured the first time the unit is used, but it is not required.

Basic setup can be performed on the bench with just the USB cable connected to the device. No

external power is required.

Maximum Rev Limiter: This is the maximum RPM that the engine can reach before the coils

will not produce spark.

Launch Rev Limiter (Blue Wire): This is the maximum RPM that the engine will reach before

the coils will not produce spark while the launch wire has 12V battery power applied to it.

Latched: When this is “DISABLED”, the two step will activate any time the RPM is at or

above the set Launch Rev Limiter. If it is set to “ENABLED”, the launch rev limiter can-

not become active unless the RPM falls below 7/8 of the set RPM. For example: If set

at 4000 RPM and the launch wire is activated, the launch limiter can only come on if the

RPM falls below 3500. This prevents accidental activation while at high RPM (such as a

faulty launch switch activating or activating it with the clutch during the run).

Coil Type: This selects the dwell or charge time of the coils. Choose “AUTO” if unsure.

Auto – The controller will automatically match the coil dwell to the crankshaft reluctor wheel

used.

LS1 – This sets the dwell time of the LS1/6 coils.

LS2/3/7 – This sets the dwell time of the LS2/3/7 coils.

Truck – This sets the dwell time of the early truck coils.

Idle Timing Control: This will use timing to help stabilize the idle speed of your motor.

It should be set to “ENABLED” on any motor that also used a computer controlled IAC.

Enabling it will cause idle timing to be dynamic and it may appear to jump around at idle

when using a timing light.

TIMING TABLES

Under this tab, you will find the timing tables used to control the spark output. The appropriate table

is selected with the rotary dial on the front of the LS Ignition Controller. If connected with MSDView,

you can double check this setting by looking at “Rotary Dial Position” under the monitor tab. The

four “Custom” tables (Custom 1-4) are adjustable by the user while the other six cannot be modified.

The cell values and axes (interval units) can be changed on all four of the Custom tables. For ex-

ample, if more resolution is desired on the MAP axis in a Naturally Aspirated application, the interval

units can be adjusted such that the maximum value does not exceed local atmospheric pressure.

The axes on Custom tables 2-4 are linked, so changing one will change all of them. The Custom 1

axes are unique and can be changed independently of the Custom 2-4 axes.