Advanced Engineering Tech For the more hardcore LS1TECH residents

Tuning Docs, VE/MAF, SES Lights, FAQS + more!

Thread Tools
 
Search this Thread
 
Old Mar 8, 2005 | 03:29 PM
  #1  
horist's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Exclamation Tuning Docs, VE/MAF, SES Lights, FAQS + more!

-This Sticky is a consolidation of useful discussions and Tuning docs that have been brought up over the years. As new information is added I will update the Date in the thread title.

-If there are any topics you wish to discuss or think should be added to this post feel free to post up This sticky should be here to serve the tuning community, so should contain what YOU want to see/discuss

FAQ
If I reset my PCM/Disconnect my Battery/Battery goes dead will I lose my tune?
---Nope... your tune is stored in flash memory... only way to lose it is if you reflash your PCM. It may idle poorly at first while the car is "relearning" how to idle however. This should only last a few minutes.

I have an SES light. Can I disconnect my battery/pull the PCM fuses to reset it, and then pass OBDII Emissions?
---Usually no... once you reset the PCM (wether by removing power or clearning w/a scanner) the PCM sets the readiness codes to "not complete" for the various emissions tests. You need several driving cycles usually (hot and cold starts) before the readiness tests will complete.

What's the best Tuning software for me?
---The best is a personal decision. Here is some info that will help you decide.

Detailed Descriptions located at:
https://ls1tech.com/forums/showpost....8&postcount=20


Quick Links:
Learning to Tune:
--Tuner Software-Tuning 101
--HP Tuners .bin Repository
--Predator Tuning 101
Fuel Trim Cells:
--Fuel Trim Cell Discussion
Injector Tuning:
--Tuning SVO Injectors
--Injector Scaling Calculations
--Injector Duty Cycle Calculations
MAF and VE Tuning:
--How the MAF Works
--MAF Table Tuning (Dialing in the MAF Table)
--VE Table Cracked!
--VE Table Tuning -- Now Hesitation when driving
--Tuning VE via fuel trims
Torque Converter/Shifting Tuning
--Torque Converter locks/unlocks after larger converter install -- FIX
Idle Tuning
--Stop drilling those Throttle Bodies!
--Idle Operation Part 1
--MAF and Running Airflow Tables
Diagnostics/Troubleshooting/Other
--Service Engine Soon (SES) Lookup and Diagnostics
--Detailed Diagnostic Information
--GM Driving Cycle (Completing OBDII tests)
--*NEW*IAT vs Resistor vs Reported Temperature *NEW*
Reply
Old Mar 8, 2005 | 03:50 PM
  #2  
cyphur's Avatar
TECH Senior Member
iTrader: (10)
 
Joined: Mar 2003
Posts: 8,009
Likes: 0
From: North Texas
Default

this is an awesome collection of information. definitely sticky worthy!!
Reply
Old Mar 8, 2005 | 04:08 PM
  #3  
epic's Avatar
TECH Regular
iTrader: (2)
 
Joined: Jul 2002
Posts: 460
Likes: 0
From: NW Burbs, IL
Default

Horist you're my hero. <3
Reply
Old Mar 8, 2005 | 04:24 PM
  #4  
tomaSS's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Mar 2004
Posts: 327
Likes: 0
From: Las Vegas
Default

Finally! Very nice. Thank you.
Reply
Old Mar 8, 2005 | 06:36 PM
  #5  
fyi's Avatar
fyi
Teching In
 
Joined: Mar 2005
Posts: 7
Likes: 0
From: The great U.S. of A.!
Default

Thank you for your efforts!

-franklin
Reply
Old Mar 8, 2005 | 10:42 PM
  #6  
Bink's Avatar
TECH Addict
20 Year Member
 
Joined: Jul 2002
Posts: 2,261
Likes: 0
Default

Thanks horist!
This was one of the most exciting threads I'd ever read ->VE Table Tuning -- Now Hesitation when driving.

NoGo and ChrisB - nuff said.
Reply
Old Mar 9, 2005 | 09:57 AM
  #7  
way2slow's Avatar
Staging Lane
 
Joined: Jun 2002
Posts: 57
Likes: 0
From: Lower Alabama
Default

Looks Awesome! Thanks!
Reply
Old Mar 9, 2005 | 05:45 PM
  #8  
TAQuickness's Avatar
TECH Junkie
iTrader: (28)
 
Joined: Jan 2004
Posts: 3,250
Likes: 1
From: Houston
Default

Nice. The forum looks much better all cleaned up!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 13, 2005 | 10:07 AM
  #9  
Bink's Avatar
TECH Addict
20 Year Member
 
Joined: Jul 2002
Posts: 2,261
Likes: 0
Default

horist - can you include gameover's "Idle Operation Part 1" thread? It includes Part 2, also. Thanks.

-> https://ls1tech.com/forums/showthrea...3&page=1&pp=20
Reply
Old Mar 14, 2005 | 08:40 AM
  #10  
Black02SS's Avatar
TECH Junkie
iTrader: (36)
 
Joined: Oct 2002
Posts: 3,291
Likes: 1
From: Kokomo, IN
Default

This might help as well. It takes the thread above me and puts it into a spreadsheet format. Determines the Running Airflow Tables

MAF and Running Airflow Tables

Included now in the help file Bill.
Reply
Old Mar 14, 2005 | 11:42 AM
  #11  
Bill Bowling's Avatar
TECH Addict
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Apr 2003
Posts: 2,597
Likes: 4
From: Lawrenceville, GA
Talking

Originally Posted by Black02SS
This might help as well. It takes the thread above me and puts it into a spreadsheet format. Determines the Running Airflow Tables

http://home.insightbb.com/~black02ss/RAFTABLE1.0.zip
What PID's do you need to log for your spreadsheet?

Bill
Reply
Old Mar 14, 2005 | 03:56 PM
  #12  
Black02SS's Avatar
TECH Junkie
iTrader: (36)
 
Joined: Oct 2002
Posts: 3,291
Likes: 1
From: Kokomo, IN
Default

Edited my above post to include a updated sheet with a help file.
Reply
Old Mar 20, 2005 | 04:51 PM
  #13  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

hey, could you link to http://www.allmod.net/hpt/ officially? that's where my MAF calibration stuff is, which i know is linked in txhorns' thread, but it's kinda buried.
thanks
Reply
Old Mar 21, 2005 | 02:56 PM
  #14  
FILE's Avatar
TECH Senior Member
20 Year Member
iTrader: (5)
 
Joined: Apr 2002
Posts: 7,277
Likes: 0
From: Truck Heaven
Default

Awesome info.... Thanks for getting this info together.
Reply
Old Apr 10, 2005 | 06:33 PM
  #15  
horist's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Default

added Silverhawk_02TA's VE tuning page... thanks
Reply
Old Apr 11, 2005 | 07:13 PM
  #16  
Bill Bowling's Avatar
TECH Addict
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Apr 2003
Posts: 2,597
Likes: 4
From: Lawrenceville, GA
Talking

Thanks Silverhawk_02TA. It looks good. I am going to be giving it a try this weekend.

Bill
Reply
Old Apr 21, 2005 | 11:40 AM
  #17  
horist's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Default

Added
https://ls1tech.com/forums/showthread.php?t=306296

for Injector duty cycle calcs
Reply
Old Apr 23, 2005 | 09:09 AM
  #18  
Bad30th's Avatar
12 Second Club
iTrader: (13)
 
Joined: Nov 2001
Posts: 1,898
Likes: 0
From: San Diego, CA
Default

The link for "Idle Operation Part 1" in the lower section (not the top one) is broken. Top link works fine.

Thanks so much for putting this together, it's been really helpful.

Bad30th
Reply
Old Apr 27, 2005 | 03:28 PM
  #19  
horist's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Default

thanks, fixed the link
Reply
Old May 4, 2005 | 01:37 PM
  #20  
horist's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 7,036
Likes: 1
From: Lake Zurich, IL
Default

Title: Tuning 101
Description:Tuning Documentation for Newbs. Contributed by james99ws6 and contains information from many enthusiasts
Purpose:Newb tuning assistance
Location: https://ls1tech.com/forums/showthread.php?t=284479
Quick Jump: http://www.transamws6.net/HPTuners/ls1tuninginfo.doc
----------------------------------------------------------------

Title: HP Tuners .bin file Repository -- Search for bins , upload your own bins!
Description: Provides access to hundreds (175 at last count) of .bin files for your viewing pleasure.
Purpose:Tuning aid, view what others have changed and learn from them
Location:
https://ls1tech.com/forums/showthread.php?t=190486
Quick Jump: http://www.horist.com/hptuner/
----------------------------------------------------------------

Title: MAF Table Tuning (Dialing in the MAF Table)
Description:Useful information on dialing in your MAF tables.
Purpose:Tuning your MAF readings to match actual air entering the engine
Location: https://ls1tech.com/forums/showthread.php?t=256989
----------------------------------------------------------------

Title: VE Table Cracked!
Description:Contains many valuable mathmatical and theoretical formulas, discussion, and documents about the Volumetric Efficiency Table
Purpose:Volumetric Efficiency Discussion
Location: https://ls1tech.com/forums/showthread.php?t=149741
----------------------------------------------------------------

Title: VE Table Tuning -- Now Hesitation when driving
Description:Further Discussion on VE tuning and how to fix hesitation issues via tuning
Purpose:VE Tuning and hesitation fix
Location: https://ls1tech.com/forums/showthread.php?t=84933
----------------------------------------------------------------

Title: Torque Converter locks/unlocks after larger converter install -- FIX
Description:How to fix when an aftermarket Torque Converter will not stay locked
Purpose:Torque Converter Lockup Fix
Location: https://ls1tech.com/forums/showthread.php?t=162767
----------------------------------------------------------------

Title: Stop drilling those Throttle Bodies!
Description:Discussion on achieving quality Idle w/out drilling your Throttle Body and without Computer Tuning
Purpose:Idle Characteristics
Location: https://ls1tech.com/forums/showthread.php?t=177230
----------------------------------------------------------------

Title: SES Code Lookup
Description: Several sites for looking up Service Engine Soon lights
Purpose: Code lookup and diagnostics
Location: https://ls1tech.com/forums/showthread.php?t=209783
Quick Jump: http://www.obdii.com/codes.asp
Quick Jump: http://gearchatter.com/
----------------------------------------------------------------

Title: Detailed Diagnostic Information
Description: GM LS1 Information PDF file
Purpose: Interesting read describing the various sensors and how they work...
Location: https://ls1tech.com/forums/showthread.php?t=103710
Quick Jump: http://www.hsvdriversclub.co.uk/ls1.pdf
Quick Jump: http://www.transamws6.net/HPTuners/holden_ls1.pdf
----------------------------------------------------------------

Title: Fuel Trim Cell Discussion
Description: Discussion of conditions required to enter certain fuel trim cells (FTCs)
Purpose: Discuss and explain Fuel Trim Cell mappings
Location: https://ls1tech.com/forums/showthread.php?t=125583

----------------------------------------------------------------

Title:Idle Operation Part 1
Description:Discussion of Idle operation and Idle tuning. Special thanks to Gameover of HP Tuners for sharing this very useful information.
Purpose:Idle tuning
Location: https://ls1tech.com/forums/showthread.php?t=193103
----------------------------------------------------------------

Title: MAF and Running Airflow Tables
Description:Excel spreadhseet for calculating MAF and Running Airflow Tables. Special thanks to Black02SS for this contribution.
Purpose:Compliments the Idle Operation Threads
Location: https://ls1tech.com/forums/showthread.php?t=290064
----------------------------------------------------------------

Title: Predator Tuning 101
Description: Learning to tune with a Predator Handheld programmer
Purpose: Writeup on tuning with a diablo sports Predator
Location: https://ls1tech.com/forums/pcm-diagnostics-tuning/294713-predator-101-sticky.html
----------------------------------------------------------------

Title: Guide to tuning VE via fuel trims.
Description: Writeup on VE tuning via the fuel trim tables. Special thanks to Silverhawk_02TA for taking the time to do this writeup.
Purpose: Dialing in the volumetric efficiencty table
Location: https://ls1tech.com/forums/showthread.php?t=304025
----------------------------------------------------------------

Title: Injector Duty Cycle Calculations
Description: Writeup showing how to calculate Injector Duty Cycle.
Purpose: To determine how close you are to maxing your injectors. Rule of thumb is you don't want to be higher than 80%
Location: https://ls1tech.com/forums/showthread.php?t=306296
----------------------------------------------------------------

Title: Injector Size Calculations
Description: Excel spreadsheet for calculating Injector Sizes
Purpose: To properly calculate Injector Sizes. Thanks to RedHardSupra for this file!
Location: http://www.transamws6.net/HPTuners/injectors.xls
----------------------------------------------------------------

Title: Tuning SVO Injectors
Description: SVO Injectors are rated at 40psi , not 3 bar. useful info on tuning these injectors
Purpose: Assist with properly dialing in IFR tables w/cars running Ford Motorsports SVO Injectors
Location: https://ls1tech.com/forums/showthread.php?t=326601
----------------------------------------------------------------

Title: GM Driving Cycle
Description: GM OBDII Driving Cycle.
Purpose: Following these instructions should cause all OBDII readiness Tests to complete.
Location: http://www.transamws6.net/HPTuners/gm_driving_cycle.txt
----------------------------------------------------------------
Reply



All times are GMT -5. The time now is 01:23 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE