Finally got motivated and scanned the Suburban ('97 K1500 5.7L) today. I made a couple of small changes to the stock tune. First I moved the 98MPH fuel cutoff (speed limiter) to 200MPH, effectively disabling it. Second, disabled the check engine light for rear O2 sensor heater codes (P0141 and P0161). I've been having issues with those codes every time I use my remote start system, but they never trip otherwise. Disabling the check engine light will still allow them to log errors, now they just wont annoy me any more if I need to use the remote start. (Related thread here)
The fuel cut off parameters can be found in Constants>System Parameters, and the O2 sensor code settings are in Diagnostics>Fuel and Air Diagnostics. Both are pictured here in stock configuration before I made any changes.
And here after my changes. The DST software seems to mark all unsaved changes in red, which is convenient IMO.
The read and flash procedures went smoothly with no issues, and the Suburban still starts and runs. I did notice that the PCM in my Suburban seemed to program faster than the one in my dad's '06 3500. Maybe just less data to write?
The fuel cut off parameters can be found in Constants>System Parameters, and the O2 sensor code settings are in Diagnostics>Fuel and Air Diagnostics. Both are pictured here in stock configuration before I made any changes.
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And here after my changes. The DST software seems to mark all unsaved changes in red, which is convenient IMO.
You must be registered for see images attach
The read and flash procedures went smoothly with no issues, and the Suburban still starts and runs. I did notice that the PCM in my Suburban seemed to program faster than the one in my dad's '06 3500. Maybe just less data to write?
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