5.3L pinging problem
06-22-2015, 04:47 AM
#31
Well it's still kinda pinging and gets no KR while pinging but retards after... I remember my turbo truck used to do same thing and had a lot of false knock so I disabled all of that ****.. I finally got my laptop online and here is the tune. I adjusted shifts a little and tq management, speedo and limiter. The rest is untouched by me.
06-22-2015, 11:45 AM
#32
Why did you set the shift times to .000 for normal and performance??? The truck can't even do things that quickly.
Otherwise like you said, everything looks stock.
Not sure why it shows a little knock when you let off, but it doesnt seem to harm anything. Maybe something rubs of something.
And you have a pretty bad vacuum leak that you need to fix. Your fuel trims tell of a vacuum leak, look at how they are always near +14ish or so, then max out at +16.4. I would fix that and then see how things go.
Messing with the timing, some PE enrichment and perhaps adjusting the burst knock tables can lead to less random kr pop up.
Otherwise like you said, everything looks stock.
Not sure why it shows a little knock when you let off, but it doesnt seem to harm anything. Maybe something rubs of something.
And you have a pretty bad vacuum leak that you need to fix. Your fuel trims tell of a vacuum leak, look at how they are always near +14ish or so, then max out at +16.4. I would fix that and then see how things go.
Messing with the timing, some PE enrichment and perhaps adjusting the burst knock tables can lead to less random kr pop up.
06-22-2015, 04:40 PM
#35
Why did you set the shift times to .000 for normal and performance??? The truck can't even do things that quickly.
Otherwise like you said, everything looks stock.
Not sure why it shows a little knock when you let off, but it doesnt seem to harm anything. Maybe something rubs of something.
And you have a pretty bad vacuum leak that you need to fix. Your fuel trims tell of a vacuum leak, look at how they are always near +14ish or so, then max out at +16.4. I would fix that and then see how things go.
Messing with the timing, some PE enrichment and perhaps adjusting the burst knock tables can lead to less random kr pop up.
Otherwise like you said, everything looks stock.
Not sure why it shows a little knock when you let off, but it doesnt seem to harm anything. Maybe something rubs of something.
And you have a pretty bad vacuum leak that you need to fix. Your fuel trims tell of a vacuum leak, look at how they are always near +14ish or so, then max out at +16.4. I would fix that and then see how things go.
Messing with the timing, some PE enrichment and perhaps adjusting the burst knock tables can lead to less random kr pop up.
Last edited by stock48; 06-22-2015 at 04:49 PM.
06-22-2015, 09:11 PM
#37
Yea like I said it sure feels a lot better but I dnt want to jack it up. Trans is stock with no shift kit. Just has a nice lunge on shift doesn't bang or slam. Iirc I did same thing on my Dmax Alison a few years ago and it's still going.
06-22-2015, 09:56 PM
#38
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if you ever figure out your pinging problem, let me know. I can hear detonation in my truck at WOT past 80 so i did a log an the most it showed was 1* and it wasnt even where i heard it. im not really sure where to even start...
06-22-2015, 10:41 PM
#39
I did a vacuum check and looks like intake gaskets are good has 20+'' at idle in park. Cleaned MAFS and a little better but it's hot out so ecu is pulling some timing due to IAT's. I did do a fuel psi check and it has 57~58 at idle and 52 at WOT. Thinking pump might be getting a little tired. Also have a stock air box for it but need clamps and some stuff to put it on.
