Gremlin85

iTrader: (8)

I'm still having troubles keeping it from going into "nanny" mode. On top of my tune I have now, I adjusted Proportional Max and Wastegate Duty Cycle Correction by using what people are posting on HPT forums... checked everything out and it seems to run mint up until it gets close to redline (5000-5500 RPM) and it closes the throttle on me and won't boost until I shut the car off and turn it on again. I adjusted the DAL's to get rid of the 27PSI spike I was having and it would boost 24ish PSI... until it cuts out.

I put everything back to where it was and am giving it a break for a while. My mind has turned to mush running in circles trying to figure this out.

Chevycobaltss3

iTrader: (2)

are you sure you have over boost turned off? ENGINE DIAG.

Gremlin85

iTrader: (8)

As far as I knew, all I had to do was change the Enable RPM to something unreachable and its off...

Chevycobaltss3

iTrader: (2)

Yeah but id still change all of them. Wut codes are you throwing?

Gremlin85

iTrader: (8)

All of them? So the Overboost error and the Overboost Hyst.?

And thats the thing, I'm not throwing a single code. Nothing.

Chevycobaltss3

iTrader: (2)

So your car will not go into boost at all after you hit a spike and then drop to your constant but no code. Either you have such a bad boost leak that it makes you go limp or it is truly still seeing your car going into overboost....... I guess change the settings over, and if it still does make sure all clamps are on good on the charge pipes, data logg as well so you can see at what part of the maf scale its fu**ing up as wel with fuel. make sure your not running lean as well. How far are you off on the top end.

RyRidesMotox

Mine did that when the MAF tables were off... What HZ is your maf running on the logs? Could indicate a boost leak or a bad maf, if your MAF code is turned off it won't throw it but it will still throw you into limp mode.

Chevycobaltss3

iTrader: (2)

yeah i said the same thing, it sounds like hes getting a limp issue as well but alot couse cause it..... Hey man dont you sleep____________________ oh **** n/m lol its 12:30 here and 9:30 there lol damnit

Gremlin85

iTrader: (8)

I think it's just in my tuning... Today, I uploaded my tune I had before I started to tinker with the new features HPT unlocked and the car runs fine and pulls like it did with no problems. No codes no nothing.

I uploaded screen prints of the peak of my pull. Tell me what you think.

Chevycobaltss3

iTrader: (2)

Well make sure ire fueling is correct what do u have it set to fuel mass fixed normal ect. Did u change fuel pressure and also did u change every table that theuve been fiddling with because id suggest if u have a issue post on the hptunwr forum so we can look at ure tune and ect. Tell us ure issue and what caused it like after the new parmeters ect.

Gremlin85

iTrader: (8)

I didn't mess with any of the fueling because I didn't feel a need to. I'm not running any ethanol (except the 10% that's in there already from the pumps) so I didn't see fueling being an issue. Fuel Pressure is on normal, Pressure Fixed 10Mpa, Pressure MAX 15Mpa, it's just all stock. Never touched it.

The very first thing i did was adjust everything that BYT and Iambroke changed minus the injectors... I did a pull and it cut out like I've explained. I then realized they were fueling for E60 and such so I left the fueling alone... did another pull with everything changed except the fueling and it cut out again. I go back to my current tune and everything is fine.

BYT*SS*TURBO

iTrader: (6)

I have Full E85 working on my car now. I have a small spot still Im working on where there's no enough fuel but its 500rpm long and only when I try to make the car boost harder down low. It is possible tho on stock parts cars already, I have 1 person trying a Full E85 tune on a mostly stock car and its looking really good even from the first flash

Garret

iTrader: (1)

great news, good work byt

sundevil07

iTrader: (1)

I have 50/50 blend in the car now. i multiplied the inj const multi table by 1.13 and ltft's are sitting pretty at -.08 to -1.6, car is running very lean on the wot pulls with the stock maf freq and 1.0'ing all the base correction tables. I need to work on the stft's to get it back inline at wot and then i will mess with the timing and see what she can do. Not one * of knock even with 13.5 afr in the midrange! LOL

I have your wgdc table and dal table you posted byt just modified to come on a little sooner and a little harder, the pull is very linear and predictable!

Gremlin85

iTrader: (8)

That's fantastic work, Nick.

So I started to tinker some more and I used your (Nicks) suggestion on the Duty Cycle Correction. I also changed my Proportional Max top 165kPh and then made that whole column 95. So far it hasn't cut out on me again. Everything looked super smooth and I might adjust some things to ramp the boost up a little quicker... it'll start around 17psi and build up with the RPM's to 24-ish and then taper off to 20. One thing that I noticed now is that I get MASSIVE KR up top (2.5-4.5)! I'll have to work on that.

BYT*SS*TURBO

iTrader: (6)

Trims will do that, make sure your AFR is actually what's commanded

Sun - you are doing the constant right but make sure you are also adjusting the Injection Timing Tables. After modifying those we had E Blend cars running excellent. We made 10whp over a layer tune E Blend car. Nothing changed other then the fueling options and removing the TF portion.

*hint* Make the Injection timing in the lower areas look more like the mid/top end and smooth into it!

sundevil07

iTrader: (1)

Good info! So opening it a little sooner will correct the stft's up top? theyre going up from +3.5 to +7 in the 3500-7k range. Weird how that worked out lol.

The only tables i would change are the hom single low and hom single high correct? not the charge threshold or double intake, comp etc.?

Gremlin85

iTrader: (8)

Okay, so now i know i missed something with overboost.

I adjusted everything, ramped up the boost a little quicker and harder, trims are good and i'm getting what I command in lambda... but it threw 2 codes finally...

P0106 and P0234 which go hand in hand.

P0106 is Manifold Absolute/Barometric Pressure Circuit Range/Performance Problem
P0234 is Engine Overboost Condition.

VinceTrifecta

If you are on the stock (e.g. NOT GMS1) tune you can't go above 255 kPa without eventually throwing the P0106 code unless you can modify the test criteria for it (which didn't seem to be in the list of updates from HPT).

So, you can either turn off the P0106, upgrade to the GMS1 sensors and tune, or see if HPT will add that for you.

The P0234 is due to boost exceeding desired boost by a certain threshold for a certain period of time. The desired boost cap on the "stock" tune is 240 kPa, which you are almost certainly over if you are throwing P0106 also. I think most people are circumventing the issue by disabling overboost diagnostics.

EDIT: ...or you can take the GMS1 tune, set the MAP/Boost sensor scalar and offsets to the stock sensor values and, at the very least, the P0106 will be resolved. (I'm assuming you're running the stock tune, not the GMS1 tune)

SCcobaltSS

iTrader: (2)

sub's

BYT*SS*TURBO

iTrader: (6)

Since HPT added MAP scalar features you can now use either OS with either sensors

You can also disable all of the 0106 codes and the TC Engine Overboost code like mentioned in the pill mod thread to disable them with a regular OS just fine (which is what I do on my car still). I plan on changing to the GMS1 file tho and testing with that

Gremlin85

iTrader: (8)

So go into Engine Diag > DTCs and just turn them all off? That stops the overboost problem?

I reduced some of my DALs and ramped up the boost a little easier (closer to what you had) but still left it a bit aggressive and I haven't had anything happen again. It'll hold 23PSI and then fall off to 20 after 6000 rpm. My goal was to hit and maintain 24psi for as long as possible with this turbo (I know it drops off close to and after redline) but every time I do, it kicks back, goes into limp mode, throws the codes and doesn't boost.

BYT*SS*TURBO

iTrader: (6)

disable the codes mentioned above

foff667

We are adding a bunch of turbo load/boost limits, the ETC ramp rate tables, hopefully the P0106 test and a few more PIDs later this week.

-Bill

gmtech16450yz

Thanks Bill!!!!!!!!!! Looking forward to the next beta update. I'm having excellent results with the new tables so far, most definitely making more power and better response. I like the optimum spark tables, and if there's anything I could ask for it would be more ign timing control. Ignition timing is one of the most important parts of tuning any motor and there's still a fair amount of spark tables that we don't have control over on the LNF's. Could Chris possibly take a look and see if he can get us some more ignition timing stuff? Like cat warmup, decel, min final timing, torque control timing, shift smoothing, etc.

Any more help you guys can give us on this would be awesome and greatly appreciated!