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Where are you pulling this info from?
I have an Ancel 4000 Code Reader that is capable of pulling running data from the PCM. Over all it is a decent tool BUT dealing with the vendor for updates, well, lets just say, that is another story.
Maybe your scan tool is wonky.If it's pulling 33 degrees of timing,it wouldn't even run,or if it did,it'd be back firing out the tailpipes with flames.
Not all code readers have the ability to display the PCM data correctly. I know exactly what you are seeing. I have a Bosch glorified code reader and it does the exact same thing with some of the PID's in the data list. When I am using the WiTech or my Snap-On or Autel scan tools they will show the base spark as something like 18° or 12° or whatever the actual number is with the engine running.
Well, I thought about that so I tried it on another vehicle and it read correctly. I've used that scanner on other vehicles but I've not had the opportunity to try another truck from that it
Yes, with timing that late it should run like crap, but then again it does. Doesn't seem to have the power it once had and fuel economy dropped from22 - 23 down today- 12. That literally happened from one tank to the next. I'm running out of ideas.
If you want to see what the actual timing is I suggest using HP Tuners and logging the timing PID's or using the WiTech.
