Take a look at my first log, if you don't mind...

[skills4lou]

Setup is 98 K3500/4L80E/7.4L Vortec w/upgraded injectors. They are Bosch replacements, supposed to be the same flow rates, but based on what I'm seeing (across the board LTFT in the high negative numbers before tune), I'm thinking that the actual flow is a bit higher.

10134


For some reason the MAP wasn't showing any data, but using my cheaper scanner I get plenty of activity, so that must be a bad/wrong PID. At KOEOff, it's showing 24.5 in/hg.

Anyway, trying to get my LTFT's down from the previous -14 to -17 on both banks. Looks like it's getting better under accel, but cruise is still pretty high. Where do you think we go from here?

[skills4lou]

BTW, I didn't pay attention to the units, and set my top speed to 85 KPH instead of the intended 85 MPH, so you'll see some cutouts as a result. That has been fixed. ;)

[N0DIH]

I emailed you my L29 Vortec PID and Dashboard files, see if that helps you out.

[skills4lou]

Got 'em, thanks!

[skills4lou]

OK, using N0DIH's dash, I can see that it was actually logging MAP. Have to figure out what I had messed up the first time. Anyhoo...

[N0DIH]

Yup, you probably need to select the right PID for the dash, but mine already has it set, so if mine works you are good.


OK, using N0DIH's dash, I can see that it was actually logging MAP. Have to figure out what I had messed up the first time. Anyhoo...

[Aloicious]

you might want to look into your KR. its very minimal, but its almost constantly there.

do you know what your LTFT's were before the injector swap by any chance?

[Aloicious]

try logging your STFT's too, they'll give you more of an instananeous trim figure.

when I plot your LTFT's on a VE style map you can see a trend in them which points me toward a airflow inaccuracy more than an injector flow rate inaccuracy. but with LTFT's its hard to tell. post up another log with the STFTs if you can.

[N0DIH]

Post another log? I don't see a log to start with.... Am I missing another thread?

[Aloicious]

its a link at the very end of his first line, it says log_0000.efi

[skills4lou]

Thanks Justin, I'll log w/STFT's the next time around. Probably be a day or so, still trying to troubleshoot electrical issues in one of the ranch tractors.

[Aloicious]

no worries, whenever you get time.

[skills4lou]

Ok, here's a log from this morning. A bit cold when I first started the log, still OL. Then some slow cruise, a short WOT run, cruise, etc. (basic trip to town from the ranch).

Some different PIDs used for this one:
10241

Thanks!