Just to be clear, when I say "Desired Boost" i'm referring to parameter ID 2360 (commanded/target boost, basically), which is different than physical sensor readings given by Boost[2339] and...
Type: Posts; User: wilson0x4d
Just to be clear, when I say "Desired Boost" i'm referring to parameter ID 2360 (commanded/target boost, basically), which is different than physical sensor readings given by Boost[2339] and...
I've been trying to wrap my head around understanding how "Desired Boost" sensor arrives at the reading that it does.
I went through a number of logs and cannot find a "Desired Boost" value above...
Confirmed, 'Speed' values were still too high. It was that simple.
Moving my shift Speeds down ~5mph results in "reasonably close" shifts for in 1->2 (5300-5600rpm avg) and 2->3 (5600-5900rpm...
I've left the tune in place for a couple days now with no obvious change in WOT Shift behavior.
I also disconnected battery leads yesterday to let caps/settings purge to see if that would coerce a...
I have performed a read-entire of the T68 (TCM-only read) and compared it to the tune file I've been working from, VCM Editor shows no differences ("compare log" is empty, visual check shows what I...
I've attempted to write calibration for a T68/5L40E combo (stock 2008 Saturn Sky Red Line Automatic Transmission.)
My goal was to move shift points forward under WOT. I've made a number of...
I really wish I had a "Search prev/next" feature. Not sure how to request features, but..
A "Condition" expression similar to what you see as "Filter" elsewhere would be brilliant, you can just...
What I'm hearing is that I should go to a dealership and have them reprogram the ECU then read the GMS1 program off the ECU afterward using HPT because none of the tunes in the repo can be:
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I apologize if this is already clarified somewhere, I looked first.
My primary concern is the correct process for Write Entire, VIN and VATS so my stock radio and OnStar still work afterward.
...
I was looking at these and noticed that while "ETC Pdl" does not reflect the boost curve, "ETC" does. When examining vs. "ETC" the low-rpm boost log appears more aggressive than the high-rpm boost...
Just want to point out the binary for "13" would be 1101.
It also appears that a 7,7,14,13 series would allow cyl 4 to run cooler (in theory) and also in theory allow cyls 1-3 to run hotter. I'm...
Just an update.. I have continued to avoid editing Main Spark tables. Whether or not this is a proper approach I've no idea.. I'm still learning.. but I have eliminated a significant amount of KR...
I think I noticed this today, I had done a pull right after re-interpolating 30-60 from stock and it introduced some silly knock, took 0-50 back to stock, leaving only 60-100 interpolated, also...
Thank you for this. I just saw it, not sure how I missed it yesterday, but it's great info.. One of the biggest lessons I've learned since my first post: I cannot and should not modify more than one...
I actually had linearized my DAL, and I liked the feel even though it is abnormal. I reset it when I noticed the KR issue.
I'll be rebuilding it either late tonight or early tomorrow morning...
Well, no worries then. This tune isn't that important to me, which is why I was seeking input about the KR histograms. I hadn't seen anyone talk about how the tables behaved, I figured I would ask. I...
It's too hot to do logging today, maybe later tonight. I'll revert any COT changes to stock and give it another go. I maxed it out only to rule out COT temps having anything to do with the KR (it did...
@TurboCobalt - All good info. A couple terms turned me on to more posts online I hadn't read yet :) so, thanks!
@CSSOB - I attached my tune (53954) and the log file I collected from it (53953). I...
I noticed a new engine sound at almost exactly 3000rpm, very high pitched (not the BOV, which sounds different and more obvious).. the car has never made the sound before. That's the only reason I...
TL;DR? Unfortunately, I am not sure what Main Spark Advance "In Min", "Ex Min", "In Max" or "Ex Max" are, at a technical level. I've arbitrarily utilized "Intake Cam Des Angle" [PID.2170] and...