Connecting COMPUSHIFT to Chrysler HEMI Crate Engine
Overview
This guide provides details on setting up a COMPUSHIFT Sport or COMPUSHIFT Pro with an Chrysler HEMI crate engine with the STAR connector. These two systems are connected together using CAN bus, and signals like throttle position and engine speed are automatically transferred between the two units. No other connection is required.
Setup Instructions
Ensure that both units are powered by the same switched ignition power.
Connect the CAN bus between the COMPUSHIFT controller and the engine management system.
On the COMPUSHIFT Setup app or handheld display, navigate to the “Vehicle Setup Menu”.
Ensure that the transmission type is set correctly.
Set the engine type on the COMPUSHIFT controller to “Chrysler Hellcat CAN”.
Navigate to the dashboard on the setup app or handheld display.
Start the engine. Confirm that the engine speed and throttle position are reading correctly on the display.
Do NOT drive the vehicle until you have confirmed CAN communications are working properly and you have no trouble codes.
You can diagnose CAN bus problems by going to Diagnostics / Network Diagnostics on the CS Setup App. The CAN 1 Receive Count should be steadily increasing when the ECU’s are communicating correctly. The error counts should always be 0. If you do have errors, confirm that the CAN bus baud rate is set to 500 in Network Setup.