Bigblockquad

Can anybody explain to me what LS1 edit is and what parameters it affects.

Sorry, just used to Buick GN motors. :D

Bink

The PCM/ECU in our cars provides OBDII/diagnostics and engine/powertrain management.
Ls1Edit allows us to "Edit" the various lookup tables in the PCM as well as modify/turn off-on many diagnostic tests ( as well as their associated codes).
Some of the functions we can Edit are Timing and Fueling as well as the transmission shift points etc.
In order to evaluate the need for and result of Editing you will need a scanner to log various parameters ( RPM, MAP, MAF, LTFTs,O2 V etc.) and evaluate performance. EFILive and Autotap are the most popular. EFILive 6 is the best product IMHO.
Hope this helps some.

From Carputings Site -Here is a short list of some features of LS1-edit:

Engine Control:

Limiters:

four Idle Speed Tables
Five RPM Limits
RPM limit By Gear Table
RPM Limit by Temperature
RPM Limit Delay
Fuel:

Fuel Air Ratio Table
Volumetric Efficiency Table
MAF calibration Table
Fuel Pressure versus voltage
Fuel Injector flow rate Manifold vacuum
Fuel injector Offset Table
Power Enrichment vs Temp Table
Power enrichment versus RPM Table
Wide Open Throttle Hot & Cold Tables
Closed Loop Enable vs Temperature
Timing:

High and Low Octane Spark Adv. vs RPM vs Load
Base Spark Advance in Gear, and In neutral Tables
four Knock retard Tables
3 Torque Management tables
6 Knock Learn Parameters
Maximum Torque Parameter
Engine Diagnostics:

You can change the mode of 64 different Diagnostic Tests

Transmission:

A4 Shift Speed

Normal Mode Shift Speed vs Throttle position for each Up and Down Shift
Performance Mode Shift Speed vs Throttle position for each Up and Down Shift
Wide Open Throttle Shift Parameters
A4 Shift Firmness

Force Motor Current vs Temperature vs Throttle Position
Desired Shift time vs Torque for each Up and Down Shift
Torque Reduction vs RPM
TCC lock tables

Normal Mode TCC lock speed for each gear by Throttle Position
Performance Mode TCC lock speed for each gear by Throttle Position
Cruise Mode TCC lock speed for each gear by Throttle Position
Normal Mode TCC release speed for each gear by Throttle Position
Performance Mode TCC release speed for each gear by Throttle Position
Cruise Mode TCC release speed for each gear by Throttle Position
M6 CAGS

Six control parameters
System

Fan Temperature
VATS disable
Speedometer

Gear and Tire size scaling
Speed Limiters

Carputings site-> http://www.carputing.com/



EFILive's site -> http://www.efilive.com/scan.html


[Modified by binksZ06, 2:31 AM 2/29/2004]

Bigblockquad

WOW!

Thanks for the info :thumbs:

Bink

You're welcome. :yesnod: :steering:

LittleBoyBlu99

Youwill love the perfomance gains from this product. :yesnod: :thumbs:

cbota

I read that efilive only works while the computer is pluged into your car, once the cable is disconnected the pcm returns to stock. If this is true, is it the same with ls1 edit. Thanks :seeya

rbartick

The bi-directional features of EFILive allow you to change some PCM parameters while it is connected to the PCM. EFILive does not flash the PCM so when you disconnect the changes are lost.

LS1Edit flashes the PCM so the changes stay in the PCM, even if you disconnect battery power to the car after the changes have been successfully flashed.

cbota

Thanks, that is good to know, I guess you can do some real damage with ls1 edit if you get in over your head. EFilive seems as its more for beginners. :thumbs:


[Modified by cbota, 7:30 PM 3/12/2004]

99 MagRedVette

Here's an interesting article from the Vette Guru about the PCM and tuning:
http://www.vetteguru.com/mods/howto/

Enjoy: :cool: