- Throttle body woes
- Who has HP tuners version 2.23?
- Need a tune help
- P0172 & P0175? system too rich
- oil pressure sensor/ sender
- Problems with 4l60e to 4l80e swap using relay method
- A/C on idle tuning
- Tuning with no 02 sensors??
- Holley Dominator ECU?
- P59 ECM flex fuel compatible?
- 4l80e tcm question
- 14/15 silverado speedo changss
- Please Explain Shift Time Error For 1-2 Shift
- question on afr running fat
- base map help
- Light Throttle Cruise TCC Unlocking & Locking
- No start after a/c belt broke 3 MAF wires
- 2001 Sierra not entering idle adapt spark control
- Future proof tuning options
- HID light swap
- Rpm's not supported in scanner. Hpt
- 03 sierra bumper fit on a 99?
- 99-02 cluster swap
- Bipolar 4X4 selector?
- Found on Google image
- Any tuners in the St. Louis area?
- Tune for 2015 6.2 8 speedy
- mildly built 6.0, tuning nightmare from hell...
- Tuning out the charge fault indicator
- Truck won't start...HELP!
- 2014 supercharged GM truck tuning help
- 2011 vs 2014 trans tune.
- Quick question about Timing off the line
- Weird codes after a refresh
- how would you know ecm is dead
- Logging for converter slip, are the parameters correct?
- i need help
- i need help
- Strange A/C problem
- 2-3 Shift Flare
- look over my log
- No tach after motor/trans swap
- Relay mod and 80e barely wants to run
- 4l80 relay
- Chasing PO300 Misfire-Log File Attached
- Need a segment swap
- DTC p0106 keeps popping up
- 99 Tahoe - PLEASE HELP!!!
- Which boost controller
- Help finding a 2500HD tune for OSID 12617631 for HPTuners ASAP
- A/C help with swap
- 411 as a TCM?
- HELP NEEDED OBS LQ9 swap going into reduced engine power mode
- Weird electrical issues: Where to start?Lost 3rd/4th today
- 6.0/4L80E wiring harness for a 6.0/4L60E swap
- 4l80e torque convertor lockup help
- Front O2 sensor part #'s: Same for both?
- Anyone had issue with ELM327? Will not talk to my 2000 Sierra
- 61 5.3 LS swap and wont rev past 3000
- 07 and 08 NNBS Tahoe engine harness difference?
- Knock Sensor?
- 6.2 AWD Torque management setting
- Strange g/cyl between 2 configs, but same tune
- LS swap not making anymore power past 4700 RPM
- How do I troubleshoot Service TPMS message and key fob not working well?
- SD 2bar mode on a 2010 silverado??
- Lost Cruise. What Module PN's work on 2002
- Can someone email me HP Tuners 2.25 Beta?
- Air Conditioner comes on by itself 2007 Silverado
- High Octane Table, help
- Gen 4 limiting as a Gen 3, help!!
- NBS to NNBS map sensor
- HELP! Doing an LQ9 Swap, question about the tune!
- HP Tuners, mild power gained and trans tuned
- P1518 at 36% TPS (HPT Log Attached)
- Traction Control ?
- Wideband.
- Downloading the latest HPTuners Question
- 1999 Vortec 350 OS 09360505
- PCM & BCM questions...
- 350 vortec issue
- Installed amp, now charging system doesn't work and code p1516
- Th400 and no speedometer
- Phantom p1514 rep
- another cluster fail
- MAF Problems after cam swap
- AC Prblm
- TPMS question. 2015 GMC Sierra sensors in 2008 truck
- How to flash abs after gear install
- Dyno tune shops
- Any shop tuners here?
- 4.8l 259hr cam tuning/trans tuning help hptuners
- HPT file needed for 80s swap
- Help! 07 Tahoe acting weird!!!
- efi live software..
- Whats going on here before i take it to dragway
- Lq4 swap tuning question
- Help with Speed density tune...File attached
- Hp tuners laptop suggestion?
- Mail order tune
- Trailer lighting question... just the lights. (2001 Silverado)
- First Time Tuning
- INSTRUMENT CLUSTER SPEEDOMETER swap
- wideband egr??
- Email tunes for HPTuners.... Who does them?
- Gm trucks Ignition interlock wiring... Please help
- stalling ignition
- Local tuners Northern Illinois
- Twin Screw, lock converter in what gear?
- Can't pass emissions and getting horrible fuel mileage
- looking for a good tuner in mass
- A little confused about something
- Holley high ram intake map sensor
- lq4 swap!!!
- p0335/p0336/reluctor wheel/crankshaft sensor HELP!!!!
- High Idle in Park
- Transmission schematics
- Accelerator pedal drops out occasionally, P2133 P2139 P2140
- Tuning 99 silverado with 5.3l swap
- What harness do I need? Help a new guy....
- Airbag codes on 07 Classic
- What files to get to downshift earlier
- Read it! They want to make modding your cars computer illegal.
- Short lived fuel pumps
- passing inspection tuned speed density
- 2007 GMC Sierra 1500 SLT Z71 Weird Electrical Problems....
- 2006 3 Bar options
- Damn cluster!
- A Couple of Tuning Questions
- code 1635
- 80e swap pcm segment swap problems....
- 2007 Silverado Classic 4wd to 2wd
- VCM scanner issues
- 6.0 LQ4 Trans controller
- 2008 5.3 knock sensors?
- Zr1 map sensor (3 bar) offset???
- 2008 L92, what OS for E38ECM and Harness?
- AZ Emission Test Time...No Cats, Stock Tune.
- Harness Question
- Setting up file on SD, HPtuners.
- Phantom P1516 & P2135
- Led cubes as fogs
- fans loosing tune?
- anyone using autometer 5v wideband
- 2000 5.3 in 2003 RCSB (was 4.3)
- Windows 8 and HPT
- Looking for stock 02-03 5.3 flex fuel Hpt tune file
- Map Sensor Not Reading!!!!!!!!!!!
- 4.8 SD tune with 80lb/hr injectors trying to get a baseline idle - efilive inside
- Need help...cannot solve my misfires....
- LQ4 swap lost communication and spark.
- Idle misfires and high rpm misfires with no code
- Alabama tuners
- ECM Stays in closed loop mode
- 5.3 vs 5.7 tune
- WOT shift RPM vs shift SPEED
- Need help! lq4 turbo Yukon runs horrible with load
- Passenger window switch not working?
- Help me, how to remove front and rear O2 sensor?
- 4l60e to 4l80e wiring help please
- High Beam issues
- LS Swap Oil Pressure Gauge
- Startup-Stall Issue
- Lost headlights and turn signal.
- Silverado 5.3lts VI Gen non VVT, 1/4 mile best time
- 01 silverado efans on low all the time
- A/C wiring question (99-02 harness on 03-07 RCSB 5.3 swap)
- Electric and Mechanical Oil Pressure Gauge Parts?
- 99 2 door tahoe fuel gauge
- Aftermarket Radio Problems
- new tune new issues
- Help... quick question 04 vs 07 power seat.
- Anybody built a Hydrogen Fuel cell for nbs?
- lq9 timing table copied to lq4 tune
- Which pins for adding 80e?
- awd 03-07 rcsb silverado trans wiring
- 0b 2 port
- Trans temp gauge install. Wiring up automatic lights
- intake manifold tuning
- Black Bear Tunes
- How To Load AutoCal Tune
- What controls the cruise control on the GMT900 truck.. Ecm or BCM?
- 05 Silverado not starting
- Testing Torque Converter w/HP Tuners
- 03 Silverado 1500 cruise control problems
- Alternator tests good but wont charge
- current performance harness&tune
- 2004 Silverado starts and dies.
- Learnin to Tune
- St louis area tuners?
- 09 escalade 6.2, who to tune /expected gains?
- Input!
- Tuning benefits from wideband
- What airbag scan tool do you use?
- Throttle body question
- Tuning for 124lb injectors sanity check (Tune attached)
- NP 242 Gen IV transfer case question
- wilson 105mm tb help
- NNBS MAF vs SD in NBS
- Going from hp tuners to efi live auto cal
- ve tuning problems
- Any GM techs here, HELP ..fast idle problem nobody here can solve
- Instrument cluster
- GM Hot Cam Nightmare!!! Please help!!!
- AEM 320lph issues
- Hypertech vs Autocal
- 2014 Code concerns... any help?
- NNBS 6.2 11 to 13 PCM/TCM software improvements
- 4L60 - what mph do you command lock up?
- Seat won't work!!
- Turning on Electric Fans?
- 4L60E Trans tune via HPT
- LM7 - LQ9 Swap
- knock sensor pulling back timing???
- airbag module problem
- No start help!!!!
- misfire help please!!!!!!!!!!
- Want to use E85...
- Lost a bunch of histograms on HP Tuners
- 4l60e to 4l80e segment swapper
- bullyDog tuner
- Surging issues with x-link and 90mm t/b
- question about my tune
- Edge insight CTS
- no crank condition help!?
- Aftermarket tach help on 08 silverado
- 96-97 Chevy silverado tuning issue.
- gas gauge Jumping
- gen 4 5.3 tuning
- Diablosport I-1000 or superchips???
- how to scale timing table(s)?
- Tuning a 5.3l
- Using wideband via Ac pressure switch
- Tuning my 2012 Sierra
- 2003 PCM 1 fuse blowing.
- Lookin for a 12653249 OS stock ECM File. EFILIVE
- 2010 gmc sierra sle z71 mirror wiring/pinout?
- hotwire question
- 4l80e relay mod tuning tips
- Mounting aeroforce in stock Trans temp gauge location?
- Please someone help me with dbw torque rush xlink setup problem on 02 escalade truck
- 2014 6.2l Tune
- 4L80e relay mod question
- Tuning a cammed 6.2
- Is Charlie Wheatley still on the boards??
- 4l80e tuning issues
- Need a 5speed DBC tune
- seat questions
- Need 4l80e tune for segment swap ASAP
- 6l80e