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Old 03-08-2005, 04:29 PM   #1
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Exclamation *READ ME FIRST-- Tuning Docs,VE/MAF, SES Lights, FAQS!!!! + more! *01/31/07*

-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.

Important Part Numbers:
Bosch LSU4.2 Wideband O2 Sensor (sensor only, replacement for bad LSU Sensors): 021-906-262-b



Quick Links:

--EFILive Tune Repository
--EFILive Website
--EFIlive Forum

--HP Tuners Tune Repository
--HP Tuners Website
--HP Tuners Forum


Learning to Tune:
--Predator Tuning 101
--How did everyone learn to tune?

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)
--Engine Modes and how they Work
--VE Table Cracked!
--VE Table Tuning -- Now Hesitation when driving
--Tuning VE via fuel trims
--Advantages and Disadvantages of SD (Speed Density) Tuning

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)
--IAT vs Resistor vs Reported Temperature
--LC1 Configuration , Wideband AND Narrowband Installation
--Wideband Logging using HP Tuners and your EGR Wires
--Wideband Logging using HP Tuners w/out EIO
--How does the BOSCH LSU 4.2 work?
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Last edited by TAQuickness; 10-27-2008 at 06:51 PM..
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Old 03-08-2005, 04:50 PM   #2
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this is an awesome collection of information. definitely sticky worthy!!
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Old 03-08-2005, 05:08 PM   #3
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Horist you're my hero. <3
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Old 03-08-2005, 05:24 PM   #4
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Finally! Very nice. Thank you.
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Old 03-08-2005, 07:36 PM   #5
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Thank you for your efforts!

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Old 03-08-2005, 11:42 PM   #6
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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.
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Old 03-09-2005, 10:57 AM   #7
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Looks Awesome! Thanks!
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Old 03-09-2005, 06:45 PM   #8
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Nice. The forum looks much better all cleaned up!
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Old 03-13-2005, 11:07 AM   #9
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horist - can you include gameover's "Idle Operation Part 1" thread? It includes Part 2, also. Thanks.

-> Idle Operation Part 1
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Old 03-14-2005, 09:40 AM   #10
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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.
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Last edited by Black02SS; 03-14-2005 at 04:55 PM..
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Old 03-14-2005, 12:42 PM   #11
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Quote:
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
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Old 03-14-2005, 04:56 PM   #12
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Edited my above post to include a updated sheet with a help file.
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Old 03-20-2005, 05:51 PM   #13
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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
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Old 03-21-2005, 03:56 PM   #14
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Awesome info.... Thanks for getting this info together.
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Old 04-10-2005, 07:33 PM   #15
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added Silverhawk_02TA's VE tuning page... thanks
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Old 04-11-2005, 08:13 PM   #16
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Thanks Silverhawk_02TA. It looks good. I am going to be giving it a try this weekend.

Bill
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Old 04-21-2005, 12:40 PM   #17
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Added
conversion of injector pulse width to duty cycle?

for Injector duty cycle calcs
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Old 04-23-2005, 10:09 AM   #18
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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.

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Old 04-27-2005, 04:28 PM   #19
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thanks, fixed the link
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Old 05-04-2005, 02:37 PM   #20
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Title: Tuning 101
Description:Tuning Documentation for Newbs. Contributed by james99ws6 and contains information from many enthusiasts
Purpose:Newb tuning assistance
Location: Finally, How to Tune 101!
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:
HP Tuners .bin file Repository -- Search for bins , upload your own bins!
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: Dialing in MAF tables anyone????
----------------------------------------------------------------

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: VE Table Cracked
----------------------------------------------------------------

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: Changed VE Table now i have a slight Hesitation!
----------------------------------------------------------------

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: "I just replaced my torque converter now it unlocks randomly" FIX
----------------------------------------------------------------

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: Stop drilling those TBs, fix stalling without computer tuning...
----------------------------------------------------------------

Title: SES Code Lookup
Description: Several sites for looking up Service Engine Soon lights
Purpose: Code lookup and diagnostics
Location: Need to lookup an SES Code? look here
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: Detailed diagnostic info for the LS1
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: Does anyone know the break down on Fuel Trim Cells?

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

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: Idle Operation Part 1
----------------------------------------------------------------

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: New MAF Table Spreadsheet and RAF Table
----------------------------------------------------------------

Title: Predator Tuning 101
Description: Learning to tune with a Predator Handheld programmer
Purpose: Writeup on tuning with a diablo sports Predator
Location: Predator 101 (sticky?)
----------------------------------------------------------------

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: Guide to VE tuning using fuel trims
----------------------------------------------------------------

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: conversion of injector pulse width to duty cycle?
----------------------------------------------------------------

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: Ok To Settle The Svo Injector Ratings
----------------------------------------------------------------

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
----------------------------------------------------------------
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Last edited by horist; 06-01-2005 at 04:45 PM..
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