This was related to removing/altering the *adaptive fuel controls*. One gentleman has already pointed out something that he felt was in error but it is straight from the book and it concerned Open Loop Equalizer settings.If it needs to be explained, let me know. If you see something that you feel is incorrect or needs explanation, feel free to say so in a post.All references/values/proceedures I'm making at this initial effort are straight from Dan Maslic's book "MASTER EFI TUNER - GM EFI - Second Edition".You can download the latest version for free from the HPTuners site. If you have an earlier version, some of the screens may have a different appearance. All screen shots I'm taking are from my own HPTuner Pro software, version 2.24.966.(2)I want to say a couple of things here to clarify/state a few things before you read further I will keep the concrete conclusions, settings on this first page so you won't have to wade through a lot of pages to get to the meaningful stuff. (9) Now that I have the software, I plan to detail what it takes to tune a 5.3 with a 3 bar speed Turbo setup for my 96 Z28, TH350 w/4,000 stall. Another said he bought it in a speed shop and walked out with it. One gent replying said he ordered the software from Summit and had it two days later. It is great software and I look forward to using it but I think HPTuners is not really setup for the retail sales. I received a UPS tracking number on day 12 and the software on day 14. It took 14 days, point to point, from Paypal transaction till it arrived at my door. They will send you a confirmation/tracking number and will communicate with you after the sale. In summation, to get the quickest delivery of the HPTuners, most people that posted responses indicated it is best to order from a distributor(Summit, local speed shops, etc) and ASK if they have it on the shelf, in stock before buying. Note: (9) I'll put this on the first post. Is that what you good people that purchased it found? Seems rather poor interaction with the customer if so. No software, no confirmation/tracking number email, no responses to my emails. I bought it from the HP site and got immediate acknowledgement that I'd paid. I've been getting my forged 5.3 ready for a 3 bar boost setup and ordered/paid for the HPTuners Pro on. The site I'd used alternately uses web based pictures or one's it has pulled off my laptop. Please bear with me as some of the picture links might not show up right away. This will work for either Lsx or 24x(LT1) I'm sure. I know most of us are/have been LT1 based but those that have/will opt for the 24x will use HPTuners too. Your goals may change over time.I've put this up on another board and thought I'd also put it here. You'll get support from their experience, and you won't be as limited in the things you wish to change or do. Thanks for all the help guys If most of your friends have gone Megasquirt, you should probably do the same. For later on I do have one that is the MAF setup so it seems like I could be able to throw a mild cam in it no problem. Honestly though I mostly just want to change some simple things such as I am running a non comp controlled trans and emission delete and stuff like that. I have no idea on tuning everyone else I know that has done this has gone with a aftermarket ecu (magesquirt v3) or has gone carbbed. For the time being will install it as stock as possible, but a combo of not really wanting to run 4 O2 sensors (since I don't have a cat set up) and my greed for speed I wanna look into tuning the stock ECU. I am sorry if this is in the wrong spot but I just bought a LS 5.3 swap (all wiring an ecu out of the donor truck) from a salvage yard for my 87 El Camino.
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