Thread: Im a newbie to tuning
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Old Thu, February 26th, 2009, 02:47 PM
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There are dozens of .hex definitions....however, there are only about 8 that are worth having for 49-state applications. A few others for the California emissions models.

Take a look here....
http://www.thedieselstop.com/faq/949.../pcmcodes.php3
In the last column there is a "Template". Match the first 5 digits and separate them into groups....then count how many groups contain the same first 5 digits.

For example, AEB0, AEB1, 2, 3, and 4 are all DPC-461 computer codes. However, they each require a different RDT to properly make tuning adjustments because the "template" is different. In this case, it is common practice to use one RDT and corresponding base file to tune with. (I know, preposition at the end of the sentence is wrong!!) To make it more complicated, match the DPC-461 with any other DPC-461 and you can put an AEB3 tune in GDU0-4. As an example, it's common practice to use PMT1 in any DPC-422 PCM.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
Last edited by cleatus12r; Thu, February 26th, 2009 at 03:04 PM.
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