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Data Logger Operation
The Data Logger can be used to record internal data generated by the Engine
Analyzer and the optional data inputs built into it. Basic logger operation will allow
you to record the following 4 or 5 internal channels:
•
Engine Analyzer Air-to-Fuel Ratio(s) – Single or Dual Channel Models
•
Engine Speed (via the external Engine Speed Input)
•
Wheel Speed (via the external Output Shaft Speed Input)
•
Driveshaft Pulse Counts (as a function of the external OSS Input)
The Engine Analyzer can also be connected to a ACCEL/DFI Generation 7+ Engine
Control Module via the external serial data link. You must connect the Engine
Analyzer to your Generation 7+ ECM using the included adapter that will plug in to
both the Engine Analyzer Serial Data Cable, and the CalMap data cable used with the
ECM. The Engine Analyzer is only compatible with Generation 7+ Engine Control
Modules having a firmware revision of 3.2 or higher.
When connected to a Generation 7+ Engine Control Module, the following 16 data
channels are automatically recorded:
•
Air-to-Fuel Ratio (selectable from the ECM or the Engine Analyzer)
•
Engine Speed (selectable from the ECM or the Engine Analyzer)
•
Wheel Speed (via the Engine Analyzer Output Shaft Speed Input)
•
Driveshaft Pulse Counts (a function of the Engine Analyzer OSS Input)
•
Manifold Absolute Pressure
•
Throttle Position %
•
Ignition Timing Advance
•
Ignition Knock Retard
•
Fuel Injector Maximum Pulse Width
•
Fuel Injector Maximum Duty Cycle
•
Engine Coolant Sensor Temperature
•
Intake Air Sensor Temperature
•
Ignition Voltage Level
•
Closed Loop Fuel Correction Percentage
•
MST Sensor Input Voltage
•
Engine Outputs Status (Fuel Pump, TCC Output, Nitrous State…)
It is recommended that a switch be installed between the Data Logging Enable Input
(Auxiliary Input #1) wire and an electrical ground source.
Each time the Data Logging Enable input is connected to the electrical ground
source, data logging will begin. The Engine Analyzer will continue to record data as
long as the Data Logging Enable input remains connected to the electrical ground
source. When the Data Logging Enable input is disconnected from electrical ground,
Data Logging will stop. When the Data Logger is configured to record only internal
data channels, the Red RECORD button on the screen can be used to override the
Data Logging Enable Input. This button will not function when the Data Logger is
configured to record Gen 7+ ECM data.
A new logging session (Run) will begin the next time that the Data Logging input is
grounded. In this way, multiple Data Logging sessions may be stored in memory
until the onboard memory in the Engine Analyzer has been filled. Optionally, a
