Incredibly lean after calc.vet.

[TJWells]

I have a c5 with a modified ls7. Cam heads ls9 injectors. 90mm. I have been killing myself trying to tune it. I finally got to take it out for a decent drive and flashed in my B5001 and B0101. Now it is so lean it will not rev. at least it starts and idles better. Could I have my wideband set wrong somehow? Innovate lc2. Every time I log it it goes so lean I need to add 10 or 20% to B0101 to get to even run ok24917. I followed the calc.vet instructions to the T.

[nonnieselman]

LS9 injectors are not the best choice. They will give you some weird fueling issues from their angled spray pattern.

Are you running SD? Or Blended? or MAF?

[TJWells]

I'm running MAF. I have a few issues. I can't disable the maf to tune. I pulled the yellow wire out to disable it. It will not run like that. So I plugged it back in. Logged a good 45 minute drive. coppied b0101 and multiplied b5001 then the car ran worse. It seems to create lean holes in the blocks that got changed. So bad that I get a flashing check engine light. wide band shows lean not rich. I may not have CL disabled, I can't seem to figure out how yet. It is definitely correcting the ve table while I log. I just don't know why. I have to be doing something wrong. I went into summary notes and corrected every table to log. I would really appreciate a nudge in the right direction.

[TJWells]

Could you suggest a good replacement injector? If I'm right I just need to change the IFR and injectors and start logging.

[TJWells]

Current tune and most recent log.

[TJWells]

Can anyone give me a hand with this?

[nonnieselman]

I use these in a bunch of cars and trucks.
https://www.pcmofnc.com/product/ac-delco-12613412-50-truck-injectors-set-of-8/

[nonnieselman]

Current tune and most recent log.

Ill have to go get the other laptop to be able to open your tune. Your using a newer verison.

But i wouldnt worry about tuning it till you get some better injectors. The LS9's in a LS3/LS7 intake will give you some weird fueling issues.

[nonnieselman]

Can anyone give me a hand with this?

Unfortunately this forum is dead on the gasser side.

I got the correct LS9 injector data in the tune and set it up for OL-SD.

I find its much much easier to get the VE dialed in first.

Your VE table was a huge mess. Thats why it wouldnt run with the MAF disconnected.

Ill PM you my email if you need help getting the VE done.

Load this and get a idle datalog of about 10 minutes or so.

What PIDs are you logging?

[TJWells]

calc.vet pids24924

[joecar]

Start with stock tune, import the various injector tables (why are you using the LS9 injectors?), the then do AutoVE (i.e. correct the VE table) first.

[TJWells]

Hi Joe!
Nice to hear from you again. I don't have a stock tune available. At least not one I trust with this ls7. I used a ve I had from a 383 tune and added fuel to be safe. Am I wrong in this thinking?
We worked on the IFR tables a few months back. I used the tables given to me by highlander from the forum. Then I used the excel sheet to calculate them. seemed closer. I had the ls9 injectors and secondly I wanted plenty of fuel available for e85 and nitrous. This is a 12.5:1 motor. I do have the 50 lb/hr injectors on the way that were suggested by nonnieselman. I'm curious if they cure some of my issues.
When I do AutoVE I get a ve thats so lean in areas that I get a flashing check engine light. I just don't feel safe. I feel that something in my tune is correcting my ve and messing with the new map.
I also can't disconnect the yellow wire to my maf and get the engine to run at all to log it.I have tried several ve tables, just wont run. This was my most recent attempt.

[nonnieselman]

Hi Joe!
Nice to hear from you again. I don't have a stock tune available. At least not one I trust with this ls7. I used a ve I had from a 383 tune and added fuel to be safe. Am I wrong in this thinking?
We worked on the IFR tables a few months back. I used the tables given to me by highlander from the forum. Then I used the excel sheet to calculate them. seemed closer. I had the ls9 injectors and secondly I wanted plenty of fuel available for e85 and nitrous. This is a 12.5:1 motor. I do have the 50 lb/hr injectors on the way that were suggested by nonnieselman. I'm curious if they cure some of my issues.
When I do AutoVE I get a ve thats so lean in areas that I get a flashing check engine light. I just don't feel safe. I feel that something in my tune is correcting my ve and messing with the new map.
I also can't disconnect the yellow wire to my maf and get the engine to run at all to log it.I have tried several ve tables, just wont run. This was my most recent attempt.

The VE that was in your tune from last week was done wrong.

Ill get on the other laptop and get you a new tune done with those "3412" injectors and a new VE to test.

I think your pasting the corrections wrong into your VE.

[TJWells]

"I think your pasting the corrections wrong into your VE."
I thought the same thing, but instructions clearly say to copy and paste the whole table. for ve. I actually believe the maf table is correct.Each log I do the maf shows virtually no corrections.
New injectors you suggested are in, I'm just waiting for ICT billet adapters to fit the HI Ram intake..
Still does"nt explain why I can't disconnect my maf. But that has to be something in the current tune. I am curious, does my latest tune's ve look any better?

[TJWells]

Question?
Once I log, and filter the log, what should I do? It seems that I should paste and multiply not just paste it in with all the zero cells. I know they will correct themselves. I have seen it happen.

[nonnieselman]

You have to Paste and Multiply with Labels.

the Scanner has the BEN's calculated for you.
You have to Multiply this table into the VE table since BEN is a Percentage of difference between Commanded and Actual AFR.
IF the BEN Map has a 0 then the VE table will have no change.

[TJWells]

I thought that was what I should do, but it clearly says to paste in the tutorial.
5. Paste the CALC.VET map into your B0101 VE table:

Copy-with-labels the new CALC.VET map and paste-with-labels into table B0101 in your tune file.

Note that the CALC.VET map replaces your B0101.
That makes sense why it kept going lean no matter what I do. For B5001 it says to multiply and that worked exactly as it should. Any thoughts why I can't run it without the maf yellow wire connected?
I always thought the B0101 numbers looked like lambda.
Also, how do I select only the cells that have data in them? I don't want to add all those zeros in by multiplying by zero.
LABELS MAP kPa VET g*K/kPa (Average)
RPM RPM 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
400
800 1.229888 1.132281 1.193630 1.187988
1200 1.153613 1.242669 1.320731 1.373405 1.274041 1.872593
1600 1.082728 1.204145 1.398431 1.542948 1.678752 1.702085 3.189988 2.855084 7.111897
2000 1.068204 1.070930 1.367633 1.600188 1.860614 2.203547 2.545664 2.580200 3.529210 2.816827
2400 0.997046 1.056901 1.143912 1.519854 1.828100 2.058242 2.017404 2.386554 3.975146
2800 0.944389 1.024340 1.155916 1.662941 1.982788 1.945474 2.285725 4.545598
3200 0.884184 0.870845 0.911002 0.965142 1.198501 2.843178 3.970440 4.955851
3600 0.827633 0.795867 0.822490 0.753261 0.864262 3.770528
4000 0.813408 0.737463 1.036132 3.311338
4400 0.868553 0.747378 3.880891 3.906667
4800 0.942720 0.820471 4.121968
5200 0.825340
5600
6000
6400
6800
7200
7600
8000
I gotta be missing it somewhere, but I'm dumb.....

[nonnieselman]

Your tune wasnt setup to run in SD.
Ill send you a updated tune when i get to the other laptop with the latest version of EFI.