Hey all, first of all I am kind of a newbie to HPtuners, joined awhile ago but finally bought my own.. I am a 25 yr dealer tech so I am familiar with the factory side of things.. Just playing around a little, not causing serious damage.. coupla questions if anyone has any time..
My own personal Guinea pig is a 2013 Silverado 5.3L.. bone stock..
Already turned off dod, seen too many high mileage dod motors with fouled out plugs on the dod holes and burning more oil than I would like to see.. Once I get better at this I may re-enable it with different settings..
would like to...
1) eventually work on increasing my mileage some.. I am not a leadfoot, I really have no use to try and boost horsepower, unless that means less gas pedal needed and that means more mpg.. 70% of my driving is 40-50 mph with turns and some hills.. Infrequent highway use but if I could get mpg up better there I could use the truck more on the highway instead of grabbing the car all the time and putting too many miles on that..
2) I have noticed on my truck that bank 1 and bank 2 differ on long term trims as much as 6-7 at some points, done this since I bought it new.. I have now verified with logging that this is consistent throught rpm/airflow, in fact now that I am logging it is now starting to annoy me, lol.. I have already gone thru looking for intake leaks,etc.. Smoked the intake system, and I haven't found any reason for this.. This isn't cause for alarm, but I thought I could tune it to correct this.. I am however unable to really find a table to correct differences between left and right banks.. There are tables for b1 and b2 O2 sensor rich/lean switching which have varied numbers and even a cold table offset but the minimum and maximum seem to be set to 450 right below it.. Looks like the tables aren't even enabled by the way the min and max are set at 450mv.. Might be reading it wrong but the help files included with hptuner do not show these tables or settings, hence not much of an eplanation that I can decipher.. Wondering if anyone has been thru this before and knows what I am talking about.. I'm thinking of opening the min or max and then adjusting one table slightly to even out the trim levels..
3) Also wondering if I could actually use the airflow mode and O2 rich/lean VS airflow tables and adjust it slightly leaner just during my 40-50mph cruising, sort of like a lean cruise..
4)I have been doing some reading and research, even helping out a coworker with a tuner on an older truck, but the guides don't seem to fit my truck in that I do not have the same VE tables that are shown in the guides.. Say I do disable my maf and drive it and log it, where would I make corrections??
5) increase my throttle response for those times that I need it.. I'm not talking tire spin, I'm talking about when I need to move this thing out of the way of some oncoming texter/makeup artist, you know the delay from when you hit the pedal to when it decides it might actually feed ya some power, that's what I would like to help if possible..
6)I'm still running cats.. How worried do I have to be if I try and optimize my spark and/or adjust my fuel slightly?? I'm not really concerned but thought I would post this and see others opinions..
Thanks for any tips, suggestions, or even more links for me to read/browse and take notes from, especially from anything this new as that is something I haven't had a whole lot of luck with.. Tom
P.S. already added my stock tune to the repository, been there for a couple weeks but hasn't shown up yet.. If anyone needs a stock tune on something fairly new from Chevrolet, let me know and if I can find it on the lot, I can suck the tune out of it...