This is a discussion on lost within the Computer & Tuning forums, part of the LSx Technical Help Section category; I have a 98 ss camaro 5.7 is slp intake, slpmaf and slp lm exhause going to add kook's longtubes, ...
08-20-2008, 04:09 PM #1
I have a 98 ss camaro 5.7 is slp intake, slpmaf and slp lm exhause going to add kook's longtubes, ls6 intake, tb, pulley. I got the hp tuner and wanted to try to mess around with it but i'm completely lost i've figured out how to change the skip shift and change the rev limiter besides that I don't know what changes what can anyone help me figure this out or send me to some links, Also any proven tunes would help a lot i've figured out how to add a tune.
08-20-2008, 08:45 PM #2
how long before you'll be doing the mods? If it's relatively soon I'd probably wait until you get the mods on there to really start tuning it or you'll have to redo it. If you're just wanting practice though it wouldn't hurt nothing.
Start with the scanner. It's a very important piece of the puzzle, the most important. Just log the default parameters to start with and email me a log and I'll go over each one and tell you what you're looking at...email@example.com I'll also tell you how to switch stuff in and out and what histograms do and what they're used for. Send me a log when you get a chance.
08-21-2008, 06:50 AM #3
I spent months and months and months and months reading. I'd suggest camping out in the HPTuner's forum and pretty much reading up everything that you can find there.
08-21-2008, 02:52 PM #4
08-21-2008, 10:05 PM #5
I looked at that log you sent me. I see you have an slp maf added. I would switch back to the stock maf for the time being...your fueling is jacked up and I suspect that maf might be behind it. Your ltft's are maxed at 25% on both banks and your stft's are lean too. You also have some knock. You're lean all over basically. That second log the ltft's dropped to 18-25% but that's still way to high.
Swap that maf out and buy a wideband so you can properly tune the car. Once you get a wideband and can tune for the maf you can run it but until then I'd put your stock one back in and buy a wideband.
08-21-2008, 11:46 PM #6
kinda lost with the wideband what should I get that will work well with my 98 and the hp tuner(I thought the pro verson of the hp tuner works as a wideband as well though). I'll put the stock maf senor on before I add the parts and record some data. Then i'll put the tb on and try with the slp maf and the stock and post those up if you don't mind looking.
Last edited by slpcamaro; 08-22-2008 at 08:35 AM.
08-22-2008, 10:02 AM #7
Swap to that stock maf and go to the bidirectional controls and reset your fuel trims and take a drive and log that drive.
08-22-2008, 10:06 AM #8
have a look see on the webpages i've been making on how to use hptuners
Last edited by mrr23; 08-28-2008 at 09:09 PM.
08-27-2008, 05:11 PM #9
08-27-2008, 06:01 PM #10
I use the LM-1 because it's portable but if you're wanting to do a permanent install ( recommended) I'd look at the LC-1. Frost posted up a place to get a really inexpensive wideband a few weeks ago but I can't find the post. Might want to PM him and have him send you the link.
I looked at that last log you sent me...still really lean.
08-27-2008, 06:39 PM #11
If you have a resistor on the MAF, take it off, that will immediately send fueling rich.
Budget wideband controller with a surprising amount of features: http://www.14point7.com/Widebands/JAW_1_03/JAW_1_03.htm
A really good price (don't take my word, shop around) on the Bosch sensor needed: http://www.lsxtune.com/shop/product_...roducts_id/345
08-27-2008, 06:44 PM #12
he's running a slp maf and his trims are way lean....his first log ltft's were maxed at 25% and the last one he sent me they were ~15-20%. I'm assuming it's his mods combined with that maf that's causing it.
08-27-2008, 06:49 PM #13
its almost all MAF error. If there is a resistor and if he pulls it, it should change pretty steeply.
08-27-2008, 09:24 PM #14
08-27-2008, 09:44 PM #15
Log all of what you can as far as fuel trims go against the MAF curve. If it is off, +15 to +18 everywhere that you can log, try multiplying the whole table by, say, 20% to help get you in the range for fine tuning.
08-30-2008, 04:55 PM #16
08-30-2008, 04:59 PM #17
hold on, I'll send you a file in a few minutes.
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