EFI AUTOCAL V3 Installation InstructionsUpdated 3 months ago
Important Pre-Installation Notes
BEFORE INSTALLATION, PLEASE READ
- PLEASE USE AT YOUR OWN RISK.
- These devices are for OFFROAD VEHICLES ONLY.
- Do not attempt to read the stock file using AutoCal. If you need a stock file, contact your dealership for a reflash.
Support Hours: Support is available only during business hours.
Installation Steps
- Connect the OBD2 cable to the AutoCal device.
- Plug the other end into the vehicle’s OBD2 port.
- Power on the device, navigate to the Tune menu, and press Enter.
- Select the Tuning option.
- Choose the Program Full option.
- Select the Calibration file for your AutoCal device.
- Follow on-screen instructions to complete the installation.
Special Instructions
For 2007-2012 Cummins Trucks:
Important: Before installing the tune file, ensure you install the patch file first. Failing to do so can corrupt the factory PCM, leading to potential issues that might require a tow to a dealership for a factory re-flash.
Cummins Specific Instructions:
- Locate the intake air throttle valve on the driver's side of the motor, underneath the intake by the intercooler pipe.
- Ensure to "unplug" this valve. If it remains plugged, it might stick closed, causing the truck not to run correctly or rev up.
- If you're unfamiliar with the location or the unplugging process, it might be a bit complicated. Consider seeking expert help if unsure.
Duramax Specific Instructions:
- Before tuning, "unplug" the intake air throttle valve located on the passenger side of the motor, underneath the hood to the left of the Alternator.
- For LML 11-16 trucks:
- Unplug both EGR Valves. You can find the first on the driver's side and the other on the passenger side of the Engine.
- Also, ensure to unplug the intake air throttle valve. Not doing so can cause the truck to malfunction or not rev-up.