Never scanned it before. I wouldn't tune it, she'd shoot me. I'd screw it all up. But I found it very interesting that it had tons, and I mean tons of kr. Nothing audible. Just kr our the wha-zoo. It is pretty maintained as far as injector cleaning and other such goes. I have always felt it had tons of TQ management, it actually makes double the power of the line if you don't floor it from a dig.

Thought I'd post about it, anybody have normal TB's (yeah yeah, non-SS) and tuning them?

 

We have a stock 2004 5.3 TB EXT kid hauler. I'm not allowed to touch this one either.

Did a log on it last year on a drive out to the lake. Saw lots of instances of KR even just under cruise conditions. Seems pretty normal as we have no issues with it. Meanwhile I was getting all worked up if I saw a single KR blip in a log on my AV.

 

That's what I am saying, we (pt.net guys) get all worked up over kr in our scans and her TB was littered with it. I have always said (unprofessionally) most kr isn't that big of a deal as long as it's not audible and anywhere near WOT. Guys create threads about how to get rid of p/t kr and I couldn't stop laughing from my house to my coffee stop this morning(10 miles).

I also have never logged advance in rpm/map format before. That's interesting. Another thing, one of the first things besides spark most do when tuning is get into PE quicker, this thing took forever to change into PE....IF it ever did. LOL I never looked at the scan. Here's the scan, again, I haven't even looked at it really. TB SCAN LINKY

Just thought it was interesting to scan something completely different...6 cylinder and so on.

 

LMFAO......dude you are my hero this week! I could not have said it any better.

 

Hero?!?! shhh xlr8nss will get jealous.

 

he is my bitch, you can be my hero

 

So how are you going to get rid of the KR?



















J/K

 

My Trailblazer is an 05, 4x4. It only has 39,000 miles and it had TONS of KR at every concievable throttle load. I have tuned mine and spent probably 10 hours on it and finally have it pretty close. Mine absolutley hated 87 octane. I never tried 89, just went to 93 and it helped A LOT. Then I logged more data, and this operating system works wierd, it uses a mixture of the low and high octane tables all the time, even at WOT, with no KR. VVT also is playing a big part in the KR I believe also, but I havent found any info on what the data units actually stand for so I left well enough alone there for the most part.

So when I tuned it, fuel trims where already 0 to -3 throughout the whole range, so I used my wideband set the PE up and got my AFR at 12.8-13.0. Then I messed with timing, and in the low and high octane NON PE tables I got more timing out of the cruise to mild load areas. PE timing tables I actually had to decrease some to keep from getting KR, I start the timing at about 19* around 2000 rpms and taper it up to about 24* by 4000 or so, and it peaks around 24* also. I raised the rev limiter and removed the speed limiter or course and thats about all I've done on engine tuning, I played with the VVT with no luck, and I don't have access to a dyno to mess with it like I should.

Transmission tuning helped make it feel better as well, these motors like to rev! I have my shift points at 6300-6400, removed all tq. mgt., raised line pressure, 0'd shift times and played with the TCC. The TCC was a big part in part throttle acceleration on mine, because mine is 4x4 and it has 3.42's , so I actually had to delay the full lockup until about 65 or it would lug bad around 55-60 when it was fully locked. I don't allow for partial lock until 50 or so either.

Thats about it for what I've done, still a work in progress but I have squeezed about 2 mpg more out of it!

 

I took a look at the stock .bin for an '06 TB4.6. There was I think multiple VE tables, for example a low, mid, and high. I don't quite understand how this works.

 

SO have you giving up on your truck? lol I can't get use to only seeing one 02 sensor