- 99 to 2002 calibration
- Idle surge coming to a stop
- "Launch box" w/ COS?
- Who runs a COS on a NA setup? Pros/Cons???
- Setting up the N2O Modes
- Pids don't respond!
- Setting B3647...accurately..ish???
- COS3 initial NA setup, B3647, A0014 and A0008 ????s
- Main and Boost VE...one table?
- PCM Terminals
- N20 Switch wiring with OS5
- V1 V2 Commercial Custom OS
- E38 Os
- Linear-fill
- Where is all my fuel going?
- Vortec PCMS
- couple of questions.....
- COS5 question for ROSS
- Reduce Engine Mode No Code
- AutoVE with V2?
- Need help - newbie
- 2001 Vette Stock Tune Needed
- Lean Start Problem with pre-2003 OS
- Concerned and aggrivated
- Anyone have 04110003 Auto Gearbox file
- stft
- Os 01251057
- Help my spark advance is too high
- cant upgrade to COS3
- 2005 to 2007 OS
- COS5 Help
- VE multi
- Interesting day at the inspection station...
- !etc??
- cos 5 on a c5?
- need help with tune file. Please look
- please explain
- Fuel Problem COS3 E40
- Custom Op Sys--which one?
- Few questions after COS3 flash
- Newbie to EFILive, Just a Few Dumb Questons
- Help COS5 Semi OL STFT ?
- is there cos for 00'
- Comparing tune table lists
- COS3 running rich
- Setting up for semi open loop
- Lean COS5 startup, tune and log included
- map rationality
- Cos3 (2bar)
- C.O.S. will not load.
- Cold Start Enrichment in pre-2003 COS
- need a starter tune
- COS' temperature model
- B3647 help?
- Help resetting OS and calabrations to stock
- COS for 4.3L Vortec V6?
- Speed density run.
- pulling timing not in program
- Help with cos3
- E38 Fans patch not being applied
- Where to start.
- COS 5 have outputs?
- 08 g8 cos
- Why run a Custom Operating System???
- For those who upgrade to a COS or have severe surging at idle
- E38 ECU, S/D operating system, forced induction. Barometeric updates?
- COS#3 adding timing
- cos3 to cos5
- Just installed COS5 - Questions
- help! rich at idle
- larger high impedance injectors
- Switch from OLSD to OLMAF
- V2 questions
- Can not reprogram pcm for new OS
- too rich?
- Two step help please
- Finally did the wiring end of my COS5......
- cos3 sem-clsd
- cos3 or cos5
- Boost fueling tables
- Strange Problem with COS Setup
- Upgrade options for a car with 09381344 OS
- PE And Boost VE {A0009}
- turbo tuned port 350 custom os 3
- Do I need the Speed Density COS?
- cos3 semi closed loop
- WTF....i want a COS5
- cruse afr
- lean low rpm??!!
- Pulling Timing - No idea why
- 4l80e segment swap!!!
- Car is running VERY rich all of a sudden
- Problem with COS 5
- reduced engine power can't be shut off
- 97 PCM to cos
- COS 5 question
- COS5 available for this OS?
- COS3 popping into closed loop even though I'm not commanding 14.68
- b5915
- M6 to 60e swap with COS3 & SD
- COS 3 Help Please
- COS 5 Question..
- COS 3 or COS 5 for 2000 Corvette?
- Can you load a cal into a COS without an ECM?
- idle problem
- Lean cold start COS3.
- 411 computer and custom OS, no flash...
- A0001,A0002, and C3003 out of range?
- 02020003 with 0411 will not go semi-open loop
- b5915
- custom 5 limiter kicking in
- 0202005 is based on what OS?
- How about a mph/retard?
- Error message?
- Spark Advance vs. Gear or MPH
- Ls1 pcm running electronic throttle
- I paid for EFLIve, why can't I flash COS3?
- STFT and LTFT tuning
- '99 to '02 OS Upgrade issues
- Still Pinging
- Flex Fuel for LS1
- timing questions with COS 0202001
- clarification on semi closed loop SD
- N2O fueling.. ONLY VE?
- V2 asking for license again
- STFT Idle
- Pe
- Custom operating system
- 06-07 cos
- Is there a COS for a 98 pcm yet?
- Custom o.s#5
- COS-3 Can I Temporarily Enable LTFT?
- COS 5 Fuel VE multiplier
- wideband 02 in closed loop
- Custom OS List
- I need a custom OS to make my M6 shift faster
- COS 3 timing question
- COS3 fueling issue under boost
- COS3 Idle no run ??
- custom os question.
- Can't get this right
- OS upgrade... from 12593555
- Looking for a 12212156 file
- stft (your input)
- crank angle sensor error
- Lean AFR Problem
- B4001 question
- Great results using Alternate Fuel operating system
- switched from COS 3 to COS 5 now reduced power mode
- 99 truck to OS12212156
- COS 3 Question
- 2 BAR COS on E40 LS2
- Advice Please
- COS for VZ 1MB PCM
- Can't edit COS
- 98 2 bar custom OS
- Full Flash and requirement to isolate from the Class-2 network
- 4l80 swap for custom operating system
- MAFless Full pressure
- Why not use MAF for entire RPM range?
- COS on jetboat
- 99 to 02 to COS5
- Custom OS not showing up after full reflash
- smoother idle
- CO3 Speed density 2 bar temperature modifiers?
- COS3 Map calibratin
- map sensor 12615136 reading
- WB 02 doesn't follow commanded AFR
- Working on a custom operating system without having pcm handy.
- First time user, help needed flashing COS
- No COS fuel trim, what did I fat finger
- COS#5 Car runs bad
- p1221 reduce power mode
- 2006 Silverado Turbo. . Really need a COS.
- 2003 c5 n20 cos
- B3647 Semi Open Cell Interpolation and cmnd AFR
- TPS VE Table
- N20 Monitor VE Muiltipler A0015
- Cold start, IAT, ECT question.
- E40 Boost VE tablevalues disappear after flash...
- COS Newbee needs a little help
- COS 5 Help Needed Here...Please
- Help with tune adjustments
- Full flash after fixing OOR cells?
- 511.99 ?
- Need a COS to start with
- COS3 and lean cruise????
- Back to stock?
- What COS should I use??
- how do I go back to gm os 12212156?
- 2000 to 2002 OS to COS sanity check questions
- E40 2bar!
- COS5 questions
- PCM OS upgrade is there any benifit???
- Is there a COS available?
- "Going Mafless" in COS Tutorial?
- A0007 with Calc VE?
- Help stuck in dead poll!
- First time COS upgrade, lost.
- cos 5 timing going to 0 at high rpms
- Any new Custom OS OP's out there?
- Limits for Cos 5
- Custom operating systems and crankshaft relearn?
- 2002 Camaro COS5 2/3 BAR MAPS?
- E38 Pontiac G8 COS?
- E38 Boost + AFM/DOD
- Custom I/O software logic
- Desired airflow COS3
- I have the oddest combo possible.....
- 408 stroker stalls when coming to a stop
- E38 COS shifting?
- COS5 nitrous activation issue
- E40 2 bar Dyn Air dropping and so is fueling and everything else
- 2 bar set up on a 99 k1500
- Cos full flash
- Tried flashing COS3 after successful test, but recieved error "ACCESS DENIED"!
- COS 04110003 Cant seem to make the "flex fuel" sensor function
- COS5 Nitrous capability question
- E38 fan rescaling ?????
- change spark table fron grams/cyl to map
- Go back to original operating system?
- 02 COS3 Invalid Checksum
- valet mode/2 steep rpm limiter
- 60e to 80e segment swap on COS
- Dual stage nitrous on a COS5
- Stock COS3 for Holden 9381344 OS
- hard to start after reflash
- dbw lq4/t56 magnum swap in 93 lightning 2 bar custom os question
- COS help?
- 80e will not down shift to 1st when WOT
- tow haul mode 2 tunes?
- COS Tuning Steps
- Went from hot weather to extreme cold not truck runs like crap
- Just finished my COS tune and no start
- Custom os tuning questions
- Problem installing COS3 on 12212156
- Breaking up in Boost Randomly
- COS5 Turbo Questions
- COS 5 Nitrous retard for Anti-Lag
- Random no starts
- Boost VE Tuning Tips
- G/cyl question
- Disable A0014 for Tuning?
- Lean Cruise with COS5?
- Semi-Open Loop Questions
- TPS VE for idle fueling ?
- COS for 2007 Silverado 12613246
- COS3 bootblock error 12212156
- 3 bar SD starting tune
- Idle Airflow with COS5 2bar SOLSD