At these cells only:

2200 40M 50M
2000 50M
1900

1700 45M
1600 45M

All surrounding cells get hits and this repeats if I manually smooth. So past year i leave it as is.

Could it be Prop Gains? In Injector correction offset I have values doubled for stock L03.

PRP gain vs 02 Err is 50% higher. PRP gain Mult vs airflow is almost doubled. PRP vs 02 error I am slightly higher. PRP duration offset is 50% higher.

75 lbs injs at 26 lbs FP 81% DC

 

It may have to do with the prop gains. Not sure why you need to increase them, as with larger injectors they should be reduced.

Look at steady state cruise and see what the INT is doing. It may be rapidly oscillating.

RBob.

 

Boy i am glad I posted this question! I knew they should be reduced but for reasons unknown I did the opposite.

Does one reduce all six in tables from EBL.bin (LO3) by approx 50% ?

 

The two AE PW tables:

AE - MAP PW
AE - TPS PW

And one of the proportional gains tables. I usually reduce the one that has larger values in it:

PRP - Gain vs O2 Error
PRP - Gain Muliplier vs Airflow

Reduce by the ratio of old injector flow divided by the new injector flow:

61 / 106 = 0.58, use the multiply function in Tuner Pro.

Note that if you already tuned in AE for the larger injectors then no need to change those tables.

RBob.

 

I have noticed that your EBL.bin for Injector Correction Offset for L03 has much "smaller" vaues in it than your 5.4.bin(3001) which you state is 80 lbs at 22 lbs FP. I increased that a tad(26/22=1.18) for my 80 lbs inj at 26 lb FP. Are there any others that need to be increased?

Others being:
Injector Corretion Multipler-TBI
PRP-Duration Offset vs Airflow
PRP Duration vs 02 error

I do not have the 5.4L(3001).bin to look at since my early version utility did not provide it. I found a reference to it earlier in this thread page 40.

I just dropped values from LO3.bin by approx 45% for PRP GAIN vs 02 error as you suggested.

 

I understand from this that prp works in open loop also even those integrator is locked for ve learns, is this correct? If the prp hasn't been compensated for larger injectors or more fuel pressure, can it cause the ve learns to richen the table too much?

 

I believe your first Q is a yes answer. And yes it will result in larger values in VE table. After making my corrections my VE table needed to be reduced 25%. a ran out of time last tuning season but did witness I needed to reduce VE globally.

 

I have been experincing ve learns that just make the calibration worse all around, example to rich in the wrong places to lean when it needs to be rich. Ill try to adjust prp and see what happen. Do ve learns operate off of the open loop- afr vs rpm & vac table when learning is taking place?

 

Proportional gain is only active in closed loop. Dead in open loop.

RBob.

 

Only when using the WB mode of VE Learn.

RBob

 

Ok understood, if prp doesn't affect wb ve learns and if the open loop- afr vs rpm & vac table is used what could cause my ve table to not be changed to close to 14.7 as commanded in that table? I guess what im trying to ask is where else should i be looking to correct this problem? Thanks

 

The stock BINs doesn't have the open loop AFR table at 14.7:1, except is a few places. So unless you changed it the WUD VE Learn won't be targeting 14.7:1.

Is there learning going on? Can do a playback of a data log and see. Is the engine up to temperature?

RBob.

 

Learning is taking place according to the wud on the left corner and I can see corrections being made on the ve screen on the wud, I'm am also able to see differences in the low and high ve tables in tuner pro when comparing the ve learn bin to the previous Bin. So yes I believe it's working just not working towards the right values. I will be happy to post a log to look at, but I won't be able to work on the car until Friday and I was trying to figure out something for a plan of action before that happens. The open loop afr table may have been changed I'll compare it to the 3005.bin you provided in base calibrations, because that's what I'm working off of. Also the engine is definitely up to operating temperature. I'm using a innovate lm2 wideband, the numbers on the controller match the number on the wud, so I don't believe that is a Problem. I've forced open loop and done all the things to change things as illustrated in the tuning tips 2.

 

With the WB reported AFR matching on the LM2 and the WUD, then the reported AFR itself is likely incorrect. The For a VE Learn via the WB the WUD compares the WB reported AFR to the commanded AFR, and adjusts the VE value to have them match.

So if the engine runs worse after each learn, then the reported AFR can't be correct.

Exhaust leaks and misfire are prime suspects.

RBob.

 

With the WB reported AFR matching on the LM2 and the WUD, then the reported AFR itself is likely incorrect.


I may be misunderstanding, but shouldn't the lm2 controller number match the wb number on the Wud screen? Or are you saying that even though they do read the same it could still be reported wrong, according to the ve learns.

 

The second one. Even though both report the same number, that number is likely incorrect. Otherwise, why would the engine run worse with each VE Learn. It should be running better with each learn.

RBob.

 

A bad plug wire fixed seemed to fix the problems. Thanks