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I had to laugh on that one :)
Right click the file and choose "Open with". If the Editor is not in the list then "Choose another app" then root around and find the Editor. Check the box "Always use...

You win. I just have the one car, plus my old truck.

I can't tell much from your tune since I/we still aren't sure what oem looks like, but one obvious thing was the Normalized Torque is 472...

Two questions:
One; which engine model exactly? If it's am M178, and it looks like it, I believe someone was asking for an oem read of that. So let us know if 178 and for sure unmodded?

Second;...

Here's one I found from another member that did it. I see no fuel changes but his tune was apparently mostly done by some other tuner not using HP, so there could be stuff we can't see.
But fyi,...

I don't have that eng but I kinda know based on knowing my engine. Also note I've never done it, I have zero interest in alerting the cops to my presence, or annoying my neighbors.
For mine it's...

Under Torque Management\Boost Control I found this with the latest beta Editor. Wth?
Scaling on left is Fuel Temp in F. I edited the descriptor into the bottom, fyi.
So at -39deg I can "only" have...

I would imagine since it's falling on its face with a lambda as lean as 1.99 sometimes.
Does it register misfire code? Never.

Yes you can, they just don't want you to. Sorry to spill the beans Bill but it was a required option when you guys did that emissions bs
I have three versions of HP on my laptop and can use any of...

It's maxed. If I recall correctly, the default on RPMs was already 10ms. That tach error was a surprise, even with my low expectations. My guess is it's the best the ecu can do, but maybe it's worse...

I'd think some of the boxes would have a default PID in there, but I guess not? So you have to add them manually, which you'd do anyway because the default one aren't enough.
Right click a box and...

The key item is it's commanding the condition. The command is usually a random # but 1.343 is a number I've seen it settle on a few times. It's even more rare they both read the the same, which is...

I think you need to use the HP scanner to see whats happening first. I doubt youre lean but we'll see. No clue about the smell but it shouldnt be any worse than pre cat car. I can make mine richer so...

I've often wondered about that one. If I do try to see if it does anything at all, I'll push it in both directions and see if I get a response from it. Mine says 6.5L, so I suppose I'd plug in 2,...

The data is delayed, and then, apparently, there is processing time in HP program. So for me, misc data can easily be a half sec off compared to other data.

When I first got HP I was getting a...

Probably the worst one yet. Lean for 3 seconds, peaking at 1.6 Lambda under 16 lbs boost at the 12:13:35 time stamp:

145493

Surprised it even ran, but I kept on it just to get data, then let...

I get comm errors too, but per Xentry they only happen once a week or so and only for a moment. Apparently, usually at startup.

When I was at the dealer getting my airbags swapped, I asked about...

This issue is happening more often as time passes. Now it does it several times a day and 1/4 to 1/2 throttle seems to trigger is most often. I should say 1/4 to 1/2 gas pedal, the throttle does...

I tried to edit my post but apparently deleted it instead...
Basically I said I "think" that M178 file is not stock. I don't have an oem to compare but some parts of it that suggest it has been...

I'm not sure if it's the write that does it, but if I had to guess I'd say it's the HP Editor itself is screwing up the tune once you make a change. If it were the write then I'd assume it would...

I have the factory data, but it doesn't cover details. It's a repair manual for a grunt that says xx code means you should check plugs xyz and if that fails replace whatever part, the end. Those...

Read my last two paragraphs: https://forum.hptuners.com/showthread.php?106235-2014-E550-Learning-to-Tune&p=776160&viewfull=1#post776160

Not saying this is your particular issue, but I suspect it...

It's not GM, but I have tried to find anything car specific and struck out. Basically what I deciphered myself is all the info I have.

The readiness I'm not worried about, never had an issue...

I too wonder, but people usually vanish and we don't get to hear about what worked or didn't. This is probably the biggest reason I post so much, because I know how hard to was when I started tuning....

Thanks Mechanic :)

Lots of info but still confusing. I assume that's generic info? Because some of does not apply to my current car.
Not sure what a drive cycle is but I would assume from a...

On my car a 100% throttle command nets 86.7 at the throttle. 85.5 to 87 is the max I see on other benz, which I assume is what the sensor sees when the throttle is against the stop. The most I've...