tapped out

[dhworkin]

The more I learn the less I know. It's time to pay. 95 c1500, 7427, L31R, vortec head, Edelbrock performer eps 2716, Lunati 20080660, flowtech 1154 FLT headers, no egr, wide band installed. Goes lean at 1600 to 1800 RPM's at all speeds.

[dhworkin]

17604 With wb02 data

[ralmo94]

Surely you can learn, I would be willing to help you.

What stock bin is your tune based off of?

[dhworkin]

BJYK 95 342 gear. Thanks for any help, I've had a lot of help from this site and have learned more than I really wanted to. It's been years since I swapped the motor and started learning to tune. I know how to push the buttons because I've been trying to tune it for at least 5 years.

[dave w]

What .xdf?
What .adx?

The 2022.bin shows Mask AA, which is fine for emulation but not helpful for figuring out the .xdf / .adx information.:mad1:

I guessed 4L60E, so I tried A217 $0D TP5 v250.adx from this link http://www.gearhead-efi.com/Fuel-Injection/showthread.php?303-16197427-PCM-Information-0D without results:

17605

I'm attaching a Guess Work_2022.bin hoping it might help.


dave w

[dave w]

17604 With wb02 data

Open Loop Only data logging? If so that explains why the spreadsheet did not have results. The spreadsheet filters out open loop data and calculates "Closed Loop Only".

dave w

[ralmo94]

Open Loop Only data logging? If so that explains why the spreadsheet did not have results. The spreadsheet filters out open loop data and calculates "Closed Loop Only".

dave w

That's how prefer to tune.
If that's $OD, I have an ADX that has an AFR error chanel that can be used with trimalyzer.
It makes thing a lot easier cause it filters out warm up temp, Decel, PE or idle, now mater how you have your histograms set up.

Away from laptop today so far

[dhworkin]

1761017611 I loaded that bin, set the wbo2 parameters so it will work and changed it to go into closed loop. Will do a log run in a hour or so and post it. Thank you

[dave w]

1761017611 I loaded that bin, set the wbo2 parameters so it will work and changed it to go into closed loop. Will do a log run in a hour or so and post it. Thank you

Let work off the same sheet of Music:

I'm not sure why the injector flow on 2022.bin is 86 LB/HR? The injector flow on Guess Work_2022.bin was changed to 80 LB/HR

I updated the Spark Tables on Guess Work_2022.bin so give that a test too.:thumbsup:

dave w

[dhworkin]

17615 My FP is 23 so that should be 81 for flow. That log was almost undrivable, I cut it short. At the end I hit the throttle and it almost shut off

[dhworkin]

I just looked at the log I posted. The wbo2 average data looks good but whats happening with the spark advance data? when I enable the perimeters for wbo2 to work in the adx (back pressure, linear egr and code 32) the timing problem starts. But when I switch those three back to stock it's a lot better

[dave w]

I've made some adjustments, please see attached Hope this helps.

dave w

[dave w]

More updates:
Pro Bono . . . hmmm?

True . . . I'm a "hired gun" tuner.

I'm always challenged . . . start from scratch with a tune . . . or "fix" a tune?

Hope the update 02 helps :popcorn:

dave w

[dhworkin]

17625 First couple starts were good and it wasn't so bad, but after 10 or so it has the problem between 15 and 20 RPMs. It's like the PCM is making it worse every time its driven.

[dave w]

17625 First couple starts were good and it wasn't so bad, but after 10 or so it has the problem between 15 and 20 RPMs. It's like the PCM is making it worse every time its driven.

The tune is acceptable, not optimal.

There was an Injector Spike in the data log, not sure the spike is real or a glitch.

dave w

17629


17626

17627

17628

[dhworkin]

I researched what might cause that injector spike and pulled the injectors and changed the screens plus I checked the connection at the knock sensor, which was questionable, so I changed the connector. Every time I load a bin to the ostrich, I first disconnect batt neg wait a couple minutes, load bin then reconnect batt. So, I loaded the 2022 update bin and It worked great for the first drive but started hesitating between 1500 and 2000 rpms on the second and got worse on every drive. I hit the emulator button and changed linear egr to not set and no change. set- backpressure egr and the idle got a lot more steady. set- 32 egr and the idle smoothed out. I've been on several drives and its not digressing and it's running well. Now that I know this is happening, I will reset the pcm and load the bin before I record a log. might get good data before the wb02 perimeters start making it run bad. I'll post a log this evening for you to look at. Thanks dave w. Add it to the bill:thumbsup:

[dave w]

Using WBO2 requires very specific .bin parameters for the AFR's to be included into the data log. The WBO2 hack repurposes the Linear EGR 0V ~ 5V for WBO2 data. Factory chips are either Linear EGR or Backpressure EGR. Mixing Linear EGR parameters with Backpressure EGR parameters is not a good plan.

Typically, when I'm using an Ostrich 2.0, I leave the vehicle battery connected when I update the Ostrich 2.0 with a new .bin file. Typically I upload a new .bin file into the Ostrich 2.0 with the ignition switch in the "OFF" position.

dave w

[dhworkin]

I changed my injectors from 61lb to the Rochester 17084327 68lb HO 350 injectors from motorman. I'm tuning for 300HP so I set FP at 19.5 and was going lean. I logged data and used the wbo2 worksheet and made changes to the open throttle VE table and it ran better but I have hours of work to do before I understanding how to use the wbo2 program. What does special paste mean? Does it mean to only populate the cells that you are going to change in the VE and data input area of the open throttle tap section in the spreadsheet? dave w I've got more ammo for the hired gun.1768717688

[dave w]

It's a good plan to change the name of .bin files with every update. For example "Guess Work_2022 Update_02.bin" to "Guess Work_2022 Update_03.bin" after an update.

I posted an update yesterday, then realized "Guess Work_2022 Update_02.bin" had updates from the file posted earlier in this thread, which caused erroneous changes.

Different injectors and different fuel pressures can affect injector parameters and injector offsets.:mad1:

The attached .bin has more tuning Guess Work.

dave w

[ralmo94]

It's a good plan to change the name of .bin files with every update. For example "Guess Work_2022 Update_02.bin" to "Guess Work_2022 Update_03.bin" after an update.
dave w

I agree, I like to save as with a new name BEFORE I make any changes, so the generated log reflects the changes made.
I personally like to say briefly what I changed in the file name, such as" VE 3 ol "

[dhworkin]

I will not make changes again, sorry about that. This log is start, stop to try and point out the problem area17709177101771117712

[dave w]

I will not make changes again, sorry about that.

Making changes is "Tuning" no apologies needed. Updating the name of the .bin after changes is a good plan, to track the progress of the tuning (what's working / what's helping).:thumbsup:

When I played back the 415.xdl I did not see spark advance greater than 36.6 degrees (2000 RPM / 50 Kpa area). Typically 2000 RPM / 50 Kpa is highway / freeway cruise, so 36.6 degrees would be normal. Data log 415.xdl did not show any knock retard.

[dhworkin]

In my ADX it shows as high as 44.6 SA. This is happening at 1500 RPMs and it loses a lot of power. When I start from a stop it gets to 1500 RPMs and will lose and lag if I don't gas it to 2000 RPMs. No matter what speed or gear I'm in this will happen at 1500 RPMs. Doesn't do it until closed loop. The only sensor that was not installed is the oil pressure sending unit. The oil gauge in the dash stopped working at 400k and I installed the new motor at 419k, so I installed a mechanical oil pressure gauge instead. Could it be a problem? I know the FP relay runs the pump until there is oil pressure and then the oil sender takes over.

[dave w]

Try the attached $OD .adx.

dave w

[dhworkin]

My mechanical timing is set to 8.1 and the scalar initial timing to 8.1. My numbers are higher because I changed the SA value in the adx to 8.1. I never told you where my timing is set:innocent2: I'm asleep at the wheel again.

[dave w]

Let's try an experiment:
When the engine is up to operating temperature, Set Initial Timing to ZERO . . . ESC unplugged. After the Initial Timing is set to ZERO, turn the engine off. . . plug in the ESC. Disconnect / re-connect the battery to clear codes. Load the "SA ZERO" .bin file file and capture / post a data log with "SA ZERO" .bin.

The Guess Work .bin files have BUTT LOADS of SA for the Vortec heads.:thumbsup:

[dhworkin]

Big improvement! 17745. Here is a log without wbo2 parameters set. 17746. Shows a little more SA and the problem at 1500 RPMs is almost gone, which doesn't happen until it goes into closed loop. :happy:

[dave w]

Big improvement! 17745. Here is a log without wbo2 parameters set. 17746. Shows a little more SA and the problem at 1500 RPMs is almost gone, which doesn't happen until it goes into closed loop. :happy:

Awesome to learn some positive progress. Please attach the .bin file used to capture data log 418.xdl and the .bin file used to capture data log 418nowbo2.xdl. :thumbsup:

[dhworkin]

17748 data log 418.xdl. 418nowbo2.xdl same bin with these changes 17749.

[dave w]

The EGR is still disabled for both Backpressure and Linear EVRV. Puzzling anomaly at 1500 RPM's. It's very challenging to know if the 1500 RPM anomaly is related to the .bin file because the EGR is disabled.

What happens at 1500 RPM's . . . without the ALDL cabled connected to the diagnostic port?

17752

[dhworkin]

I’ve been working on it. Was getting low fuel pressure when throttling from under the hood so I change the fuel pump and noticed better acceleration but the hesitation was still there at 1500 RPMs. So I change the distributor and hesitation went away but now if I go over 35% throttle it goes completely lean rich lean rich rapidly like hitting a rev limiter. I will post a log file later this evening when the traffic is not heavy. Has anyone had this problem before? The distributor was known good when I put it on the shelf a year ago. Thanks for any help I could really use it.

[NomakeWan]

Sounds like you've been chasing your tail; the problem was with the fuel pump and distributor all along, and you were trying to tune around it. Now that you've corrected the actual mechanical problems, the tune is completely wrong (because it was made to try to cover up mechanical issues which no longer exist).