Suggestions before I put time into this base file

[8aHemi]

I just swapped in some ID1300s and realised how far out my MAF and VE really was. Would anyone be willing to look over this base ive made up before i throw time into it and bake potentially bad data into it.
All the injector data is correct to my knowledge, tune is also scaled 25% (50% double stoich and 50% / 2 spark and everything else.) I hope I did that process correctly. It starts and runs fine, fuel trims were out like 30% lean, which is addressed now. I also pinned the ECU for a flex sensor, and am curious what table you use to add timing to e85 / e40 ect ect. My guess would be Alcohol adder and alcohol mult? Someone stated my PE settings were "dangerous" on one of my previous posts, if anyone could point me in the right direction there too id appreciate it. I havent played with VE at all yet, as I plan on doing the speed density patch before i play with it (e38) This is my first attempt at going from scratch so bear with me here, thanks.


L76
id1300x (not x2)
ls7 MAF card
return fuel system boost referanced
torqstorm blower 10psi



MAF 3.hpt lean idle.hpl

[JayRolla]

I would add a log with your tune file. For e85 timing you need to populate the Mult vs Fuel composition table for how much timing you want to add in ethanol. You can set this up however you want. Most e85 gains are from anything e40 and above. In my tune I have 100% timing being added at anything over e60 and 75% from e40 up if I remember right.
For timing advance on e you add it via the Flex Fuel table under Fuel in Spark/Advanced. Under your Fuel/Flex fuel tab you want to add a default percentage under sensor. This tells the ecu what to set when your sensor fails. So since I am almost 99% on e60 or above I have mine set to 60%. As for PE it seems pretty safe to me. Looks like your commanding .74-.77 which is safe under boost. Not sure why someone would say thats dangerous. As for VE it looks like the table has already been modified. Your MAF curve is not smooth, has a big jump. It should be pretty smooth all the way through.


MAF CURVE.jpg

[edcmat-l1]

If you're questioning yourself at all it's best to flash it back to stock, either with a dealer tool or a stock .hpt base file. I typically will not tune behind someone else. If a vehicle comes in and I know it's not a stock file, it almost always gets flashed back to stock.

[8aHemi]

If you're questioning yourself at all it's best to flash it back to stock, either with a dealer tool or a stock .hpt base file. I typically will not tune behind someone else. If a vehicle comes in and I know it's not a stock file, it almost always gets flashed back to stock.

Thats fair, I probably should do that, but ive been through about every table that was modified in an attempt to learn as many tables as possible, so Im pretty familiar with this one, I also have a stock G8 GT file i refer to as well.

[8aHemi]

I would add a log with your tune file. For e85 timing you need to populate the Mult vs Fuel composition table for how much timing you want to add in ethanol. You can set this up however you want. Most e85 gains are from anything e40 and above. In my tune I have 100% timing being added at anything over e60 and 75% from e40 up if I remember right.
For timing advance on e you add it via the Flex Fuel table under Fuel in Spark/Advanced. Under your Fuel/Flex fuel tab you want to add a default percentage under sensor. This tells the ecu what to set when your sensor fails. So since I am almost 99% on e60 or above I have mine set to 60%. As for PE it seems pretty safe to me. Looks like your commanding .74-.77 which is safe under boost. Not sure why someone would say thats dangerous. As for VE it looks like the table has already been modified. Your MAF curve is not smooth, has a big jump. It should be pretty smooth all the way through.


MAF CURVE.jpg

awesome information, thank you. Do you know if for whatever reason populating the flex data would cause a tune to run lean? I had my FTs close, and all I did was percent half the data I had and input the Flex timing tables from a caprice PPV to get started, as well as hand smoothed the jump in the MAF, (which I didnt even realise until you pointed it out) after flashing that file im like 15% lean across the board. I used that data and brought it back alot closer again, but im lost on that. Ill attach the most recent log file ive got, its not perfect by any means, especially after the lean mess i had to sort

[8aHemi]

Also how exactly do you go about getting into boost, just stare at the wideband and lift if it goes to above 1.0 lambda? I pulled 5 degrees out via the scanner to be on the safe side and started to ramp it up to about 4000rpm or so, it seemed solid but it never left closed loop. Unfortunately i cant get my wideband to data log for whatever reason (AEM Serial) Its pretty difficult to look at the wideband, the "commanded eq" and the road at the same time lol.

[JayRolla]

awesome information, thank you. Do you know if for whatever reason populating the flex data would cause a tune to run lean? I had my FTs close, and all I did was percent half the data I had and input the Flex timing tables from a caprice PPV to get started, as well as hand smoothed the jump in the MAF, (which I didnt even realise until you pointed it out) after flashing that file im like 15% lean across the board. I used that data and brought it back alot closer again, but im lost on that. Ill attach the most recent log file ive got, its not perfect by any means, especially after the lean mess i had to sort

Did you wait to start logging till the motor was up to temp? Changing those tables should not have made you run lean. Like what edcmat mentioned I would flash a stock VVE table in and start tuning from that now.

[JayRolla]

Also how exactly do you go about getting into boost, just stare at the wideband and lift if it goes to above 1.0 lambda? I pulled 5 degrees out via the scanner to be on the safe side and started to ramp it up to about 4000rpm or so, it seemed solid but it never left closed loop. Unfortunately i cant get my wideband to data log for whatever reason (AEM Serial) Its pretty difficult to look at the wideband, the "commanded eq" and the road at the same time lol.

I do watch it and I would actually get out of it if I saw anything over .85. You need to get your wbo2 logging.

[8aHemi]

Did you wait to start logging till the motor was up to temp? Changing those tables should not have made you run lean. Like what edcmat mentioned I would flash a stock VVE table in and start tuning from that now.

Yeah the car was completely warm both flashes, I?m not sure what happened there, I was commanding -5 degree timing when it was reading lean but I don?t see how that would affect fueling.

[8aHemi]

I do watch it and I would actually get out of it if I saw anything over .85. You need to get your wbo2 logging.

Copy that, I ordered a pro link cable hopefully I can just tie the wb into that and make it work. Seems it?s a common issue with hp scanner not liking the serial inputs via usb

[8aHemi]

Got the pro link cable, and dialed in WOT, a lot less stressful than i thought it would be, was like 5% lean first pass. Everything seems to be doing okay. On my most recent WOT run, my throttle source read "torque" pretty much the entire run, starting the second it went into open loop. Is that traction control, or will I need to play with virtual torque? TC defiantly cut power in second, but i didn't notice it otherwise. Timing advance was also greatly reduced to pretty much 0 by whatever the source of this was for the duration of second gear. Also, is there a way to make the car not so prone to stalling? Probably a dumb question, but I drove my buddies GTO and you could pretty much just slip the clutch out from idle and itll get going, mine will stall without any pedal. Of course it doesnt help it has a twin disk monster clutch in it, things pretty much an on off switch. Oh. and another issue i cant seem to figure out is on cold starts, it will start right up perfectly to idle, then about 2 seconds later falls on its face and almost stalls out before bouncing back to idle. My FTs shoot rich when the engine is cold at idle as well, once warmed up they nearly zero out. strange phenomenon.


I really appriciate all the information you guys have to offer, I didnt think I would make it this far as I had no idea what i was doing just a few months ago. Drives better than ever.

[8aHemi]

WOT4.hpl
Log of most recent pull, I guess it wasn't all the way WOT, but yall get the idea.