DSP5 / CSP5 / EZ Lynk Switch

We manufacture LLY, LB7 and LBZ/LMM and LML DSP5 switches. We offer discounts for quantity purchases. Our regular DSP5 switches include a custom made, aluminum knurled knob, a 1-5 decal, 1/8" SLT (split loom tubing) for easy install, appropriate high-temperature rated wire, as well as installation instructions. Please see our Products page for more info. In addition, we now have DSP5 1-5 decals available for sale separately.

Here is my latest personal "cheat sheet." Feel free to edit and/or send notes back to me with any updates/corrections.

DURAMAX
LB7 (2001-2004.5) blue/black wires (note overlap in 2004-2005 with LLY)
LLY (2004.5-2006) purple/black wires (NOTE: although we don’t recommend it, some companies use LLY for both LLY AND LMM/LBZ) Also, note the overlap in 2006: it could be either LLY OR LMM/LBZ which is why I don’t rely on asking for years!!
LMM/LBZ (2006-2010) gray/black wires
LML (2011-2016) yellow/black (unless MotorOps/Duramax tuning later years then blue/white)
Duramaxtuner LML split yellow/black (also black/black) = 11-12, blue/white = 13-16
MotorOps LML split yellow/black 11-14 blue/white 15-16
NOTE: LML is for both EZ LYNK and EFILIve
DSP2 for LLY*, LB7* and LMM/LBZ - *Also can be used for a high idle switch
Keylock available for LB7, LLY, LMM/LBZ and LML
NEW! LML EGR Temp Sensor (2011-2016) tan/gray wires
Replacement fuel injector connectors for LLY, LBZ/LMM
Dual/Triple/Quad CP3 Controllers - either LB7/LLY or LML/LMM/LBZ and CP3 Extension Cable

CUMMINS
CSP5 for EFILive AND MM3, Smarty and RaceMe
Keylock CSP5 switches
EFILive CSP5 is 2006-2018
MM3 Cummins switching is 2006-2018 (tuning is 1998.5-2018)
CSP5 is technically a CSP4 for 2013-2018 and CSP2 for 2011-2012 Cab & Chassis Aisin Trucks (Trans dipstick on driver side)
2018+ Cummins Bypass Cable is needed to flash a tune for 2018 and newer with EFILive
Cummins/Titan for EZ LYNK (2010-2018) red/white/black wires
Dual/Triple/Quad CP3 Controller and CP3 Extension Cable

FORD
For EZ LYNK and SCT Tuning
Universal (2011-2018) orange/white wires with two red positaps, Keylock version also available
2-pin Plug and Play (2011-2014) tan/white with yellow connector
5-pin Plug and Play (2015-2019) orange/tan with black connector, brown seal and three cavity plugs

*FSP5 tan/blue Ford specialty switch for Duramaxtuner/Calibrated Power and Motorops Tuning

6.4 2008-2010 white/white for EZ LYNK and SCT

NEW! Charge Air Cooler*
red/red wires with black connector (2011-2016) special resistance
red/gray wires with red positaps (2017-2019) special resistance
blue/blue with black connector (2011-2016) reg resistance
*Note: NOT for use with Tyrant Tuning/No Limit Fab

ECODIESEL
2014-2018 Ram 8-foot blue/gray
Jeep 14-foot gray/white

SWITCH MOUNTING BRACKETS
Cummins
Duramax
Ford 1999-2016
Ford 2017-2019

Here is a great link for troubleshooting switches:
Troubleshooting Switches

Here is a link to a video for replacing ball bearings and springs inside the switch:
Repair Video

Here are some switch pictures:
EZLYNK
DSPSwitch
Key5Switch
NEWCSP5

If you want to request our switch installation instruction library compiled from our helpful customers please request it at orders@fishtuning.com and I'll send you the latest version.

I hope that helps clear at least SOME things up!