newbie to tuning 95 lt1

[71-nova-lt1]

i have a 1995 lt1 out of a roadmaster. ive done the standalone harness mod to the harness. i need to know step by step and proglems used to do it. if some one can help me please. i wanna delete vats. trans control,egr. change rearend ratio<br><br>if some one can help me ill be think ful

[EagleMark]

That's a big first request? First you should read the TunerPro tutorial.
http://www.gearhead-efi.com/Fuel-Inj...is-a-must-read


Files for the LT1 are mask $EE, you'll need the XDF and ADX files here:
http://www.gearhead-efi.com/Fuel-Inj...rmation-EE-EEB

To read the bin file from your PCM you'll need TunerCat WinFlash and a cable from somewhere.

Load TunerPro RT and the XDF/ADX files, get a bin file and use it and click around TunerPro and get an idea what it can do, you'll see the Paremeters your looking for.

[71-nova-lt1]

Thank u!! Does that site have the files for the roadmaster lt1

[EagleMark]

Files are here in link above.

[71-nova-lt1]

How do u change the cam size on tuner pro

[EagleMark]

Cam size is not a calibration setting, if cam has changed then tuning needs to be done to Volumetric Efficeincy or MAF. You still running MAF or going SD (Speed Density)?

Did you see the Flags for VATS to disable? VATS Select (X = Enabled) and VATS Diagnostic, Error 46.

You'll need a cable of your choice and TunerCat Winflash to re-flash the PCM.
http://www.tunercat.com/winflash_des...lash_desc.html

[71-nova-lt1]

i guess going with MAP. i dont really now how to go speed density. and where can i get a cheap cable or build on my seld

[EagleMark]

MAP only is SD. If you have a MAF sensor it would be Mass Air Flow. MAP on LT1 is for barometric reading when key on before start and backup if MAF fails. Have to set Flag in bin to Speed Density.

There's a thread here to build your own cable for cheap, not sure if anyone has tested flashing with it? Lot of work for a $50 - $80 cable. If done wrong could turn PCM to a brick/doorstop.

Red Devil River has good cables http://www.reddevilriver.com/aldl.html

Moates http://www.moates.net/aldu1-and-cabl...bl1-combo.html and it does do 95 LT1 if OBDI ALDL port in place, some 95 had OBDII port.

ALDL Cable http://www.aldlcable.com/

You can buy a cable, TunerPro RT and TunerCat Winflash by the time you pay someone to flash your PCM once. May as well start to learn and you'll have the tools forever.

[RobertISaar]

not sure if anyone has tested flashing with it?

for a while, i was flashing new stuff to the PCM almost every time i got in the car.

[EagleMark]

Good news! How come you never did the package of parts for sale?

And I can't find the link to thread you did?

[RobertISaar]

procrastination? lots of other projects have popped up. i may have someone on W-body buying another though, so i'll probably have some decent reference material when i get to it.

http://www.gearhead-efi.com/Fuel-Inj...USB-ALDL-Cable

[71-nova-lt1]

RorbetISaar. The cable u built did it work and i found it on ebay but if i buy it now it will take almost a monyh to receive. Is there another board in can use that will be shipped quicker? And i have anthor question, so i tie the rx and tx together and put it to the pin m on obd 1 port

[RobertISaar]

i've built i think 8 of those now, none have had issues in various applications, even had somebody running a 160 baud setup with it.

i think someone in that thread found a board through sparkfun that also worked, would definitely get here faster than the ~2 weeks it normally takes mine to arrive.

yes, it's quite simple to connector for most applications, just connect the Tx and Rx pins together, then connect those to the 8192 or 160 baud pin, then connect the ground pin on the board to the ground pin in the connector and it's done.

[71-nova-lt1]

Thank you guy.helping me out.this is a awesome site . Im so glad im a member lol. Could u help me find a board that works