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Nevermind

Anything else I should tweak in there as far as getting better fuel economy?

My 1500HD has a bone stock LQ4, no mods at all. I'm about to take out all the torque management since it's got the 4L80E and I think it will handle it ok. Being that the truck is bone stock,...

what octane fuel are you running?

Is there a list of basic mods that most make to the transmission settings for the 4L80E in a truck? This will primarily be my daily driver but I will occasionally pull my 18' boat with it in the...

Sorry, I noticed that after doing another search.

Yeah it already had a K&N which is why I mentioned it.

Just picked up a bone stock 03 Tahoe 2wd 5.3 for my wife to drive. It's averaging 16.1 mpg over the first week we've had it. I have HPT Pro, is it worthwhile to burn up some credits to do some...

what effect does this have on part throttle and WOT? Does shifting the injection point require retuning other areas?

get a wideband

Decay or delay or both?

Is there a general right or wrong way to tune the throttle cracker table and throttle follower decay and delay and all that?

I've got my RAF and VE tables correct but when I pull up to a redlight...

How in the heck can anyone "begin" to tune their vehicle if there is no mention of VE or MAF tuning in the "beginners" book? Shouldn't tuning the VE be step 2 right after making sure the...

Mine doesn't do that, of course my throttle cracker and follower and all that is stock.

Alright, he's the tune file and the log. Keep in mind this was my first ever WOT run so the VE hasn't been smoothed or adjusted anywhere above 2,800 yet.

Near the end of the log I made a WOT pull...

will do



so 35.7lb, then obviously have to convert it for my fuel pressure.

Also I'm running bosch 0280155811 injectors which I'm not 100% on the flow rating. The best I've found says they are 34.5lb at 43.5psi which is the rating I plugged into Marcin's spreadsheet.

OK I'm running my car in OLSD dialing in the VE before enabling the MAF again. I got everything below 2800 dialed in pretty nicely so I decided to do some WOT pulls. Everything was fine with that...

I'm interested in this also. A friend from out of state bought the stuff and said that for most setups they recommend altering IFR and/or PE to achieve the A/F you're looking to achieve. I'd love...

It seems everywhere I look people argue over whether or not the C5 Z06 does or does not have torque management?

I hand smoothed and used the interpolate vertical button and it looks much better, now i've just gotta log it again and see the results.

I've been logging AFR %error and when I paste the results to the VE table it's horribly choppy and has some big spikes. Is this normal while dialing in the VE?

why would anyone tuning with a wideband set the OLFA table to all 1.0's???

PE is your commanded fuel table at WOT. The system is a hybrid that uses VE and MAF to tables to supply the fuel you're commanding. If either of the tables are off then what you command in PE won't...

MAF is certainly not ignored at WOT. MAF is what the ecm uses at WOT over 4,000 rpms.

First step before anything else is put your IFR table back to stock 03 Z06 settings. You're gonna have to...