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...
Type: Posts; User: chevota
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:
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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...
I would like to resurrect this thread because I have questions.
First; I get Permanent codes (per HP) and they go away on their own almost instantly if fixed, or I can clear them with a scanner....
Not sure if this will help since my car may work different, but on mine the LTFT are what they are in a few seconds. I can make drastic changes, or add E85, doesn't matter. Once the O2's kick on...
That file looks almost stock, worse actually. I'm sure veeefour, can hook you up, but if you're like me and you prefer to do it yourself, I attached what my first attempt would be.
Your eng is...
The data has random delays so it's pretty hard to tell what is happening when, so you either let off first, or it cut power and you let off a fraction of a second later. By looking at it I'd say you...
In that picture, where you have the line, I'd say you let off the gas.
Prior to that, on the far left where that double hump is, I'd say you hit the rev limiter. You hit it, it shut down, shifted,...
Do you have this selected?
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I had always assumed an HP tune did NOT correct the checksum, therefore I cannot pass smog in California where the smog station checks for that, but I'm just assuming.
So does it or does it not?
...
Here's my guess.
I'd lower my temps with the cooling fan too. No point in starting a run when the eng was as hot as possible. I also set the trigger to Water, no oil, so it responds quicker
...
All my channels are active on the screen, and all oem. Some are math, but based on oem channels. There are a others I'm recording too, but don't appear on the screen. Eg; knock sensor voltages...
That's a lot on the Torque to Load imo. Plus it looks like it kicks in abruptly?
What fuel are you using?
Fyi here's what my Scanner looks like, if you want to upgrade:
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https://forum.hptuners.com/showthread.php?98507-2017-C63S-File-Sought&p=693653&viewfull=1#post693653