FITMENT
- 2007.5-2021 6.7L Dodge Ram 2500 3500 4500 5500 engines.
- Note: 2018+ Ram trucks require a Cummins Security Gateway Bypass Cable to flash the ECM and use SOTF switches.
DESCRIPTION
Product Overview
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When running custom EFI Live tuning on a 6.7L Cummins diesel truck, switching between power levels traditionally requires reflashing the ECM with a new tune file. This process can be time-consuming when changing between towing, street, or performance settings.
- The Fish Tuning FTCSP5 CSP5/SOTF Switch allows drivers to switch between pre-loaded custom tunes without reflashing the ECM each time. Featuring an OBD-II pass-through Y-cable, this rotary switch provides convenient On-The-Fly tune selection from the driver's seat while keeping the factory OBD-II port available for diagnostic tools and accessories.
Key Features
- Switch-On-The-Fly Convenience: Change between pre-loaded tune levels without stopping to reflash the ECM.
- Clean OBD-II Pass-Through: The pass-through Y-cable installs behind the dash, keeping the factory OBD-II port available for monitors and diagnostic tools.
- EFI Live CSP5 Compatibility: Designed for custom EFI Live CSP5/SOTF tuning configurations on compatible Cummins applications.
- Built-In LED Tune Indicator: Integrated LED indicator confirms the selected tune position for quick reference.
- Durable Rotary Switch Design: Includes a knurled aluminum knob, position decal (1–5), anti-rotation washer, and strain-relief zip ties for a secure installation.
FAQ
Q: How does the switch connect to the truck?
A: The harness plugs directly into your vehicle's OBDII port under the dash. It features a pass-through adapter design so you can still connect OBDII monitors or diagnostic code readers without unplugging the switch.
Q: What do positions 1 through 5 on the switch control?
A: The specific power level for each position depends on how your custom tuner set up your CSP5 tune file. A common configuration is: 1 = Stock/Valet, 2 = Towing, 3 = Economy, 4 = Street Performance, 5 = Max Effort/Race.
Q: Can I mount this dial anywhere on my dashboard?
A: Yes. The kit includes a long, high-flex wiring harness allowing you to mount the dial neatly in the fuse box panel, lower dash, center console, or custom switch pod.
Q: What should I do if the switch positions feel out of order after installation?
A: Check your custom tuner's layout sheet. CSP5 switches use resistance steps to signal the ECM. Ensure the pins inside the OBDII harness connector are fully seated and clicked into place.
