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No you may have a limiter still set in the tune somewhere, post your tune and log, check in the cutoff tab there should be a cutoff rpm area and youll want to check the Park neutral setting. If the...

Okay I made a bunch of changes.. interesting results. I copied all the spark tables Hi and Low octane, I copied the IAT table and multiplier, also raised the knock sensor voltage 5%
The truck...

How much? This trans was last offered in a gen 3 with the lq4..

I am just trying to understand where you are coming from, I wasnt have this prob before with way more than 20 at cruise and 21 up top..

I am running PE at 12.2 already, and I added the IAT multipliers back in from the stock 12 tune.
Regarding Lukes comment about the timing spike, I referenced the stock table and there are numerous...

Ah ok I see what you are getting at, I?ll fix the iat parameters, that would make sense if they are pulling 10 degrees from the base value in the table..
I?ll fix that before my drive home so I...

Okay Ill check that Multiplier table, I also am not worried about the timing at 4800 rpm because I am not tuning the top end of the table right now, I am also now in PE almost every time I barely...

The wideband was only .4-.7 off from the target but the narrowbands at cruise were around -5% so not bad just that the afr tapered off at the top end. Just cleaning up. Nothing crazy..
the wideband...

Well the EQ ratio closed loop is 1.0 so unless I go in and modify that Ill leave it to PE to add the fuel as needed, right now its set to 1.198 so the commanded should be .834 but I have added some...

Ok I set the PE to come in based on MAP only, the tps values are 20% which are below what the motor idles at. so purely load based. 60 kpa is the enable value. well see how this works.

Whoops Ill fix the post, I dont want to mislead someone.

Dips in the O2 reading usually indicate a rich condition the lower the voltage the leaner the mixture. I have my wideband on so I know the fuel is pretty close to what its commanding, within reason...

81454

Here is the tune with the spark correction, Ill play with the PE settings, one thing that makes no sense to me is the factory tune is commanding at cruise rpm roughly double.. locked...

Holy crap I completely missed the low octane table!! Wow thank you for checking that out, I have no idea how i missed changing that!!
This is a gen 4 LMG 5.3 totally stock internals, it has...

I had a customer come to me and we ended up having to put another pcm in the truck because the tuner would not unlock the pcm.. very frustrating and unprofessional.

81411
Here is the log from this afternoon

So to answer a few questions, I did check for loose stuff like exhaust other things that might cause it, I checked the plugs for indications of prolonged exposure to detonation and I could see no...

Ok so I have tried a few things, first off I put E85 in my other tank and ran it that way for a day, while the knock did seem less prevalent I still had 3 degrees in some areas. no where in my spark...

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Hi Guys,

I am chasing my tail for almost a month on this and I cannot figure out what the deal is or if this KR is real or not, I am going to check plugs tonight to verify I dont have some...

There is a lot of torque management stuff that will get in the way. I have a 2012 5.3 in my 84 K20 with an NV4500 also.
The short story is, remove all the torque mgmt stuff, some of the tables are...

Wow.. thats pretty shady..
So I went back through last night and fixed the injector data. Which showed my MAF was 12% off pretty much everywhere.
My cold start only had a 49ms PW inital blip and...

Yea so, I got a tip from a friend and realized I have been doing this the wrong way, I had been scaling (for lack of a better word) the tune to mask the inaccurate injector data without...

Really no one knows?

Ive searched up and down on this forum and on the rest of the internet and I cant find a definitive answer, I am swapping a 4l80e into my truck using a 2009 E38, from my reading this is really good...