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If O2s or injectors are swapped bank-to-bank it creates a feedback loop. As long as everything is good, everything is good. But if either side starts to go away from zero then it just keeps going...

https://forum.hptuners.com/showthread.php?79508-Overheat-protection&p=577551&viewfull=1#post577551

145527

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The file you've already read out of it is everything that will ever come out, that is 'your file'.

CTRL+L, find one from before you made the change, right-click & Open in New Editor and save.

What I mean is, what file would you write to it other than the one you already have?

Nuh uh.

145505

Code is not in the manual for 2002 Astro.

145506

There are two TP sensors and two (sometimes three) pedal sensors. The multiple sensors have different voltage ranges and sometimes sweep directions so they can be used as rationality checks for the...

The info in the logs (can't see the tune file, because it wasn't posted) shows as 2004 Sierra LM7. Application matters on these things. I mean, if you want the stuff to work like it's supposed to.
...

Looking at the third log, if you have new upstream O2s why do you have pending heater circuit codes for both banks? P0135 & P0155. Did you use sensors looked up for whatever the year/make/model the...

Do you not already have a file, and have it licensed? Never read/written to the truck before this?

Also would be much easier to make sense of if you made a log showing JUST starting from a dead stop, accelerating at constant throttle, and letting the trans shift. There's tons of distracting shit...

If the TCM in the reman unit is new-new and has never had any code in it of any kind, HPT will not recognize it. It's got to have a bootloader present or something like that. If the TCM has that...

Pressure Delta between 58 PSIG (400 kPa gauge) in the rail and 14.7 PSIA (100 kPa absolute) is 400 kPa. The Delta isn't either absolute or gauge, it's just a differential pressure.

It's real common for there to be something wrong that doesn't set a Pending or Current code, but still makes it default to max retard in PE. The sensors will still work detecting knock and pulling...

Do you have an AIR pump, and do you want the PCM to think it's available anytime coolant temp is above 36F? If you do have an AIR injection system (I don't think you do) is an '02 Express PCM going...

Help > Parameter Access. Do the 'training'. Enter the code.

Type CTRL+N. Type in 'air' (or any other keyword).

145454

The cats & O2s are in Engine Diag > DTCs. Use a stock '02 Express file in Compare, that will highlight (with an outline) which codes...

A Bosch part number that has the right outside dimensions isn't going to give you something you can get all the GM-format data for. You already have some of those. If it isn't an injector that GM put...

145451

Only the LS1 injectors are the same length and same connector. They're also probably extinct in the junkyards by now, and new they're stupid expensive... like $150 each expensive. If you...

Oh, Volvo injectors. You aren't likely to find GM Gen 3-format data for those even if they aren't offshore fakes.

Well the first step is getting the tune file set up correctly for the hard parts it's connected to... AIR pump is still enabled in the tune, and even though there may not be an AIR (smog) pump on the...

No EGR, no AIR pump, no cats?

Source, part number?

O2's 'all over the place' is what they're supposed to look like when it's in closed loop, that's just how it works.