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  1. C

    Sensors

    I'm gonna say yes because my cts3 reads it and I didn't have to add it. Where exactly it's at I don't know Sent from my SM-N986U using Tapatalk
  2. C

    Def heater?

    Over on milage Sent from my SM-N986U using Tapatalk
  3. C

    Def heater?

    I've got the p21dd code, I'm over the milage to get fixed under warranty. My question is can the heater be replaced without replacing the tank also. Sent from my SM-N986U using Tapatalk
    • Casper
    • Thread
    • Replies: 5
    • Forum: LML
  4. C

    Dsp5 switch has quite working

    Would you guys remove the old wires from the ecm or just splice in the new switch
  5. C

    Dsp5 switch has quite working

    Hey all, I've had my dsp5 switch information 4 year or so and it has been working fine. We'll the other day it quite. I have checked it with Efi live and the voltage doesn't change stays at 0.0 in all positions. Any help would be great. It on an 05 duramax lly
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