Diesel Tuner's Blog

Horsepower Vs. Heat

[fa icon="calendar'] Mar 27, 2020 10:00:00 AM / by Nick Priegnitz posted in diesel performance, Knowledge Base

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Balancing Performance, Heat, and Reliability

 

Hold a cigarette lighter up to your thumb for a split second, people around you will look in amazement at how your skin magically tolerates it.  Hold a lighter up to your thumb for 5 seconds and get the ice water ready.  During those 5 seconds you're quickly using up your thumb's heat buffer.  This parallels what's happening inside your engine when pulling up a grade at GVW or passing on the highway.  Your engine has well engineered heat transfer pathways to dissipate heat from the 'front lines' the same way the blood in your veins moves heat away from your skin in the cigarette lighter experiment.  In the performance world we're concerned with 2 elements of these pathways, the first is the amount of heat the system can hold and the second is how quickly the system can move heat from the source. 

 

"Your engine has well engineered heat transfer pathways to dissipate heat . . ." 

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How To: 2.8L Duramax Tune Loading Instructions

[fa icon="calendar'] Jan 7, 2020 11:19:00 AM / by Paul Wilson posted in 2.8L, how to, Knowledge Base

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**** FOR 2016 2.8Ls PLEASE SKIP UNLOCK CODE RETRIEVAL AND GO TO READING YOUR STOCK FILE****

Retrieving 2017 unlock authorization code

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How to: Perform GM VATS Relearn

[fa icon="calendar'] Nov 15, 2019 7:00:00 PM / by Paul Wilson posted in how to, VATS, Knowledge Base

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There are a few circumstances when you will need to relearn your Vehicle Anti-Theft System (VATS) relearn.  This process is also known as resetting your Passlock or Passkey VATS system.  While the Passlock and Passkey systems are slightly different than VATS the trouble shooting them is fairly similar.  We suggest doing your research or have your truck professionally diagnosed prior to you begin this process.  

 

Possible trouble codes

  • B2947: SHORT TO GROUND ON THE PASSLOCK SENSOR POWER CIRCUIT
  • B2948: SECURITY SENSOR SIGNAL CIRCUIT VOLTAGE HIGH
  • B2957: SECURITY SENSOR SIGNAL CIRCUIT VOLTAGE LOW
  • B2958: BCM SIGNAL INPUT VOLTAGE HIGH
  • B2960: BCM READING A VALID BUT DIFFERENT CODE VALUE THAN PREVIOUSLY LEARNED
  • B3031: BCM IS IN LEARN MODE BUT DOES NOT SEE A VALID PASSLOCK™ SENSOR CODE
  • B3033: PASSLOCK™ TAMPER
  • P1626: LOSS OF THE STATE OF HEALTH
  • P1630: THEFT DETERRENT PASSWORD LEARN MODE
  • P1631: INCORRECT PASSWORD FROM THE VTD SYSTEM
  • P1632: UNDECIDED PASSWORD SENT FROM BCM

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