Chasing My Tail

[NobleTech]

I know I cannot believe the ignition timing is still taking it, I don't get any knock and I have knocked it before so I know the knock sensor is working, it only knocked and tip in at low idle and high gear, as for the injector data, can somebody please share the injector data that I need so I can get this started right, we had this conversation earlier and all they did was pointing me to where I need to get the injector data. However, there is two or three types of injector data for the different years. Years it makes a cars, I am confused about which one belongs in this car, the injector numbers are above,

[NobleTech]

That's what I would think too, however, I looked at the tables, and I am lowering the values, as you can see in the tune files, and then I make a run or just driving on the dyno at part throttle and the correction factors go the other direction, in other words histogram says negative -10 to -12, so I go take that much fuel out of both of the maf and the VE tables, I do another log and now it says 20 to 24% negative
I'm quite sure both of the tables values are going down, but it's adding fuel, I have two wide bands, one is in the exhaust and hooked to the scanner, the other is on the dyno and they both read the same air fuel ratio, so I confirm that I'm not getting garbage data from my wide band

It's almost as if there is another table like a secondary VE table that I cannot see in the tune, but is looking up that table when I go into PE mode

[kevin87turbot]

That's what I would think too, however, I looked at the tables, and I am lowering the values, as you can see in the tune files, and then I make a run or just driving on the dyno at part throttle and the correction factors go the other direction, in other words histogram says negative -10 to -12, so I go take that much fuel out of both of the maf and the VE tables, I do another log and now it says 20 to 24% negative
I'm quite sure both of the tables values are going down, but it's adding fuel, I have two wide bands, one is in the exhaust and hooked to the scanner, the other is on the dyno and they both read the same air fuel ratio, so I confirm that I'm not getting garbage data from my wide band

It's almost as if there is another table like a secondary VE table that I cannot see in the tune, but is looking up that table when I go into PE mode

Here's your file with the flex fuel characterization data installed, and a more typical timing table and and VE table from a mildly cammed 5.3L and a stock MAF curve.
Try it and let us know how it performs.


RTT-Ehanced_MAF-001WITHFLEXINJECTORDATA.hpt

[NobleTech]

Wow, that's incredible, when I get back to the shop I'll do it, I'll post here the results, thank you so much!

[NobleTech]

Thanks for your help, we've tried this file and have discovered that it is doing the same thing,
so we installed a new PCM and a new operating system and tried to write entire, same issue.
we will try my backup last top tomorrow.
we have submitted a case to HP tuners.
we will keep the community apprised
Thanks, Troy

[edcmat-l1]

Thanks for your help, we've tried this file and have discovered that it is doing the same thing,
so we installed a new PCM and a new operating system and tried to write entire, same issue.
we will try my backup last top tomorrow.
we have submitted a case to HP tuners.
we will keep the community apprised
Thanks, Troy

What is "the same thing" and where is the data log?

[NobleTech]

Well guys, we finally found the problem, it was two problems. This PCM and this car did not belong together, we tried a new PCM and that didn't work either as you have heard, so I took a stock file from the repository, and I could not write entire to the PCM. We spoke with HP tuners and they confirmed that the operating system and the vehicle and I can only use the original cars PCM and not swap types of files and types of PCMs like a PO1 to a P59 etc, and that's what we were trying to do but we were trying to get the car back to what we believe was its original state, so, I tried this morning and I was successful by writing a stock file to the car, I did not write an entire. I wrote the stock file first, then I save that and wrote entire, this time it wrote to the PCM SUCCESSFULLY FOR THE FIRST TIME, we then loaded in all the parameters from the tune that was in the car by using the compare feature, and we began tuning, everything was working out except for our dynamic airflow values very high as compared to our mass air flow values, so we did find a value in there that was a scaler and we changed it to a stock number, and now the car is very tunable and very manageable, and we made good power to redline and we'll be adding timing for torque and seeing what we can do on Monday, I just want to reach out and thank Mike Pernia of Proxis Tuning in Ohio, as well as I want to thank Greg Banish from calibrated success, it was quite a challenge and I appreciate you all that we're patient with me here, I understand that I'm not nearly as familiar with this stuff as y'all are and I just want to thank you all for being patient with us new guys