View Full Version : PCM Diagnostics & Tuning
- ses light
- fuel injector upgrade..../hptuners/????'s
- One more time - 98 to 99+ PCM
- Someone experienced review these logs please
- P0342 and P0343 codes.....know what they are, need advice on the cause
- IAC position vs airflow discussion
- C5 Timing Drop Out
- MAF Tuning
- EFI Live Spark Table question
- is my engine in limp home mode?
- hp tuners questions
- DFCO may be the devil...
- need help fast!
- Some predator questions
- 4.8 harness with f body computer??
- Experienced HP Tuners help...
- Cags..2-3 shift...use as Drag cags??
- use Fuel cutoff as valet mode???or speed limiter??
- What fuses pulled for idle relearn procedure?
- Car doesn't start sometimes?
- Increase Idle ?
- 2000 LS1 stock tune - timing drops off at peak power!?
- Need help with understanding why I can't get VE to stablize for the IDLE area
- ls1 edit
- What are these codes PO175 & PO172?
- wierd fuel pump problem
- Stoich Setting??
- Where to buy?
- injector scaling hptuners
- Screenshots of HP Tuners LS2 Product.
- Vinci programmer=AWESOME product!
- How high should I raise the misfire values?
- HPP3 on a stock SS??
- please help! race car runs like poo.
- anybody have a bunch of screenshots for hptuners more than their site
- wideband 02 questions with hptuners
- code 83
- low egr flow code 0405
- Changing rear gear with LS1 Edit HELP!!!
- how to tell if running lean??
- for all you egg heads.
- hptuners 2.0/ls2 screenshot thread
- O2 cable extensions - F-Body - codes
- Old LS1Edit tune - threw a code!
- How can I force the PCM to stay in closed loop mode all the time ?
- Bosch 13111 - where to buy?
- Dyno tune or strictly tune?
- PCM reset and idle took a while to relearn
- Need a tune for that stall + cam?
- KR on stock timing on 04 GTO...
- Primary or secondary??
- car idling funny after tranny swap help!
- Predator/Crane Programmer/LS1 Edit Dyno tune
- 04 Pcm
- Well i think my pcm died
- Help me find Idle!!
- Inlet Air Temp?
- question bout hp tuners
- Can I borrow somebodies Knowledge! Please
- Trex Heads and cam tune
- TR224 112lsa tunning question
- Problem reseting codes with ATAP
- pcm help
- SES Flashing
- First dyno visit since I bought HPTuners
- Failed inspection: "OBDII Communication Failure"
- HP Tuners, injector pulse width questions
- Weird Tuning issues after LT Headers/ORY
- Decel issues with MAF tune...any thoughts? -inside-
- removing pcm??
- anyone still using v1.4 of HPTuners?
- Is there still a trade in program going on still for Flashscan or HP tuners?
- No spark no fuel ? no dice
- What Are My LTFT's Doing?
- HP Tuners Problem HELP?
- LTFT's Avg = 21%, WTF?
- timing table needed for 6.0L LQ4
- 30# Injectors
- MAFless tuning Question
- SES Lights
- computer problems..please help!
- Need help!
- stock 04 5.3 goes pig rich after 4500
- keeping my cam sounding grumpy after tune
- EFILive users take a look.
- Tune needed with new gears and TC?
- Problem with security light on 04 GTO
- Help! - HPTuner won't connect to cable
- swapping different year pcm's..
- Cam sensor
- 98 LS1 Programmers
- L Trims and S trims?
- OBD/Readiness Driving Procedure
- Heads and Cam Tunning
- Need Help Now, Tuning Racetronix Injectors
- Is it ok...
- EVAP messing with WOT cells
- HPTuner FT min. learn % question???
- Need LS1Edit help for heads and cam install
- Tune after Heads only swap????
- where to get 2-step
- HP Tuner Address
- HP Tuner how long to receive
- how to on connecting wideband to hptuners?
- 85mm MAF - which one?
- idle hangs at 1500 until I come to a complete stop
- Got my Diablosport :)
- ECU and emissions codes
- anyone know what's up with the Diablosport forums ?
- can the ls1 pcm be used on any motor?
- EFIlive or LS1 edit?
- Hypertech PP3 TUNING ?????
- Advise: Just had car tunned, Look at my #'s tell me what you think.
- PCM Back to Stock. Confused?
- Here is a MAF table for fully ported MAF with a lid
- tune below 2500???
- Hypertech
- tunning ???
- Zo6 MAF ?? tables???
- Can 2 different handhelds work together?
- Need some info, please
- 00' Trans Am Code problems
- how to disable DFCo
- Predator 101 (sticky?)
- Is this possible?
- timing
- Hello t00ners! New to LS1, have basic PCM operations question..
- Newbie Tuning question
- Do I need a tune yet? Please HELP the new guy!
- please help
- Any Edit users have this problem???
- CASE relearn / HPTuners - need help !
- running like crap in closed loop
- LS1 timing tuner. is it worth it?
- Racetronix Do or Don't?
- big problem not a clue
- throwing codes p0507 and p0108
- HPTunners Help? 98 F-Car
- who programs gauge clusters?
- 02 sensors code 135 and 2 155's? need help ASAP
- Things to do before a dyno tune????
- Compared PE multiplier Stock vs. Hypertech - question !
- Tune to recover lost HP, please help !
- Tuning ?...... HELP.....
- changed in jectors what has to be tuned?
- need help here guys
- Cars been tuned--now new gears--what to do?
- Idle problem after head and cam swap
- HP tuners question
- Throttle Body question
- Knock Sensors (Pics)
- EFIlive vs. HPTuners, has anybody used both?
- is LTB2 sapose to be greater than LTB1?
- Need an HPTuners-capable 4-door Commuter Car...
- help! IDLE=550 when STFT's go negative
- very confused! I need some help!
- Questions about Open Loop Fuel Table (Pic)
- hp tuners question
- Crane's programer for ls1
- tac is off i think...*maybe wrong forum*
- tuneing question HELP please!!!
- hp tuners question
- efilive flashscan price
- pcm reflash by dealer
- Nelson tune for Z06?
- trouble getting rpms to recover, fuel trim problem???
- How much Hp can I get from a tune?
- Turn Signal?
- How acurate is Gtech?
- the only change was a converter!
- Errors in HP Tuners??? Can someone explain why...
- idle isnt rich anymore, YES!
- question about timing in SD mode
- false knock
- 98 Locked Hypertech
- 2nd gear start for A4 1998 LS1
- could rail pressure be reason for rich at idle?
- is it really worth keeping the MAF? read inside
- timing problem after TH400 install
- how does the IFR table work?
- help, car stumbles at idle, injector ? too
- can I change out my 98 computer??
- Question about PLX wideband - help
- converter tuning?? HELP
- P0121
- How do you delete Knock sensors?
- New to tuning
- po171 / po174
- Dfi Gen 7 Questions?
- Running Rich at Idle Question??
- How to make converter lock up firm instead of PWM?
- Injector Scaling 28lb. to 60lb
- Tuning STS Turbo Car
- 75 mp every 1/2 tank and strong smell of fuel..WTF!!??
- 98 computer question
- Insane O2 Voltages?
- Positive L-trims going to kill people help
- MAF calibration>after descreen and port
- Need help with Accel DFI
- Questions about EFILive V7/Flash/Scan..
- IS the VATS tied to the Compuer?
- needs help
- Code P0327 Help!!
- logging MAF freq in SD?
- Cold Cranking Issue/Tuning?
- need your help guys
- Need Some Ideas - Idle Went Nuts On Me
- Why is my PCM setting the wrong Fuel Trim Cells?
- Throttle hold on decelerate?
- Futral tunes?
- guys need your help here!!!
- Does HP Tuner have Increment?
- What happens when you go into boost?
- How much power would you guess I left on the table?
- new to tuning, help w/ LTFT's
- need help on code:po121
- Give me suggestions
- hp tuner gp
- tuning choices
- Sweeping guages at each start up
- Converter unlocking question
- Time Again, Dyno Talk:
- Quick LTFT ?
- fuel problem while crusing
- TPI Tuning
- Dyno Jet Wide Band Sensor Install before or after cat, Y pipe ect.
- PE Tuning?
- Can a friend with a GM Preditor load a tune I make for him using HP Tuners?
- evap test NEVER completes
- Need help with SES
- Another Open/closed loop question
- Anyone use "Pro Scan"
- What scan tool/tuner to buy
- Reading knock sensors without a stock computer?
- Aftermarket ECU
- Sputtering under light load again!!!
- Pics of the F.A.S.T XFI ECU
- Question about idle
- Help!! WOT Sputter
- learning curve
- P0748 How to get rid of it
- Delete THIS
- need some codes help
- Changing to 28#s
- Open Loop Required?
- o2 narrow mV Vs. Actual AFR wide
- high idle
- Idle Air Park Position
- No rear o2 sims?
- Is a Diablo Predator worth $350