View Full Version : PCM Diagnostics & Tuning



  1. high low octane tables
  2. Hooking up Air/fuel ratio
  3. Turbo tune
  4. Installing larger injectors
  5. connecting wideband and 2bar map to hptuners
  6. Mechanical speedo
  7. Relationship of TCC to shift points
  8. Trouble codes
  9. adjusting injector pulse width, please help
  10. why open loop at idle
  11. Engine starts, runs 5-6 sec, then dies please phelp
  12. Computer Programers Which 1???
  13. How is dynamic airflow calculated?
  14. 1998 PCM??? What's the difference between it and the newer years?
  15. P0500 (vss)
  16. hp tuners question
  17. Hp 2 Bar Or Ls1edit?
  18. KR ? with the predator
  19. Stalling after tune????
  20. Some progress...maybe. I was actually able to create bucking through tuning changes.
  21. viewing IDC... in hptuners...
  22. 112% Injector duty cycle. How bad is that?
  23. IAC reads 0 at idle..is this ok?
  24. HP Tuners......works on 2 years of cars?
  25. Need help please!!!! How do you lower TPS voltage???? I can't get it under .8v
  26. newbie question-98 C5 pcm interchange
  27. VE Tuning w/ a Supercharger
  28. Best way to log AFR vs RPM vs MAP
  29. LTFT Learn Steps......
  30. Method for Disabling Proportion idle?
  31. Need good generic OBDII scanner - no tuning needed
  32. In SD mode, a 98-00 USES A SECONDARY VE TABLE??? G^& D^&*#$!!!!!
  33. Texas Speed Mail Order Tuning On Special!!!
  34. Can't see 97 LT1 Knock Sensor in HP Tuner Scanner
  35. MAF grams/sec
  36. Crankshaft position sensor
  37. simple question.is the vin stored in the pcm?
  38. Anybody Seen Or Heard From Jesse Bubb?
  39. 2001 ss header install
  40. No drill idle mod throttle position voltage question.
  41. ve tables driving me nuts!!!!
  42. HP Tuners VS LS1 Edit...
  43. Is this something the dealer can fix?
  44. Guide to VE tuning using fuel trims
  45. reset trims after injectors??
  46. will i have pcm issues without speedometer with th400
  47. Removing A/C and Radio, some questions.
  48. Get It Tuned???
  49. Cant seem to get REDSUPRA's RAF table to work!!
  50. help throwing a MAP code what to check
  51. o2 problem?
  52. 02s Suddenly Drop From 950+ mV to Less than 100 mV at WOT
  53. running with no maf
  54. Sometimes O2's follow each other, sometimes they are opposite???
  55. Swapping A4 for M6 what to change?
  56. engine light hurt performance?
  57. hptuners SCAN any year?
  58. Newbie tuning the T-Rex, few questions, can someone look at last couple files quick?
  59. IS MAF Freq output proportional to air volume?
  60. couldnt be this easy right?
  61. KR in 3rd gear - due to air resistance?
  62. Anyone ever try Ultrasonic Cleaning slow Oxygen Sensors?
  63. trouble code 0122, 1122
  64. LTFT learn ?
  65. Crank Position Sensor Pinout??
  66. Zero'd out LTFT on fresh H/C install, dead battery, need help w/EFILIVE
  67. phantom cyl 6 missfire
  68. If Tuning the VE table we remove the MAF then couldn't we....?
  69. Fucked up night tuning in SD
  70. Real time control w/HP Tuners/EFI Live??
  71. Car wont start after flash????
  72. Dyno software
  73. how to properly tune Idle on any cammed car??
  74. forced induction tuning question.
  75. 02 question
  76. Tuning and transmission life trade-offs?
  77. IAC tuning drilling
  78. gas pedal stick when up and runs lean
  79. Mail order tune or New dyno tune?
  80. Tuning surging idle-Leave car with tuner so it can be cold??
  81. ok EVERYONE with a timing tuner sound off...
  82. looking for a good LS6 tune
  83. vinci programer
  84. Pagin V6 Tuners -- Knock Retard Decay assistance
  85. P0757
  86. BigStuff3, is it still stuff?
  87. gameover, do you have time for an in-depth on changing Dynamic Airflow Filtering?
  88. Detination and misfire after cam swap
  89. Anyone used the LC-1 yet?
  90. Which PCM to use
  91. Interface for PCM Bench Harness
  92. How do I richen with the IFR table?
  93. Question on Fan Turn on Temp for HPP3
  94. Who tunes with only STFT's?
  95. Tire height calculated vs. installed???
  96. anyone on here have...
  97. tuning without a dyno - possible?
  98. FAST EFI Problems
  99. Ve-ltft ?
  100. lls1 edit help
  101. new o2 sensors, GM or Bosch?
  102. Looking for HPT bin file and have questions
  103. Odd fuel cutout problem???
  104. fuel trims positive at 4400 but runs rich?!
  105. TPS @ 100% when at idle
  106. On a MAF car does the AFR change from dyno to street?
  107. Predator
  108. ltft HELP please
  109. jimmyblue's Trans spreadsheet question
  110. Air flow decay
  111. what do you think about my a/f on this one?
  112. SES Light
  113. LC-1 information
  114. wideband O2 placement in exhaust-dual cutouts?
  115. Need a stock 97 M6 LT1 Edit File
  116. Autotap...
  117. WOT issues
  118. what tuner to choose and why???
  119. Dual Electric Fans
  120. Autotapped the car today, need help interpreting
  121. Let's Talk WOT Vacuum!
  122. what is difference on operating systems
  123. DYNO Run COST in your area???
  124. fuel trims way + and then go - ???
  125. SES light after torque convertor install-help!
  126. M6 Guys, tell me your IAC settings
  127. Can bolt-on mods offset rich A/F ratio?
  128. *P0153 and P1133* HELP!!!!!!!!!!!!!!!!!!!!!
  129. A4 to M6 swap what computer?
  130. Ltft
  131. HP tuners trade-in program?
  132. o2 placement on turbo system
  133. no start?
  134. would a cracked lid, with a tiny hole in it affect A/F?
  135. O2 Sensor Questions
  136. newbie question on hp tuners
  137. HP Tuner ?
  138. P0300 code only at Idle.
  139. C5: Idle stubles or hangs
  140. Need to reset ltrims, where are the bat and ign fuses at?
  141. Put car in gear and it dies
  142. How do you combat a bucking issue around 1500rpm after a cam install?
  143. A4 Transmission question
  144. What would cause my fuel trims to get super rich after I let off the gas?
  145. What should IAC #s be for cammed car at idle ?
  146. SES Light Flashing!?!
  147. help p0420 code
  148. LS1 Edit Communication Error Ideas?
  149. PE table noob question
  150. HELP No idea where to start.
  151. Preditor what sponser has pre loaded program?
  152. Autotap reading help...
  153. what other data programs are there?
  154. help with p0442 code
  155. Explain the Vats system to me
  156. OBD2 software - multiple license problem
  157. question about switching from predator to hp tuners
  158. Truck won't start early in the morning?!?!?
  159. How on earth do you tune these damn Mototron 60lbs? Help me before I go insane! :)
  160. Cam/tuning ?
  161. Its been a while since i did closed loop tuning
  162. The IFR table is such a dirty way to tune trims
  163. Safe RPM limit for stock rockers?
  164. Need some help please! (lm-1 rpm converter)
  165. how well can you tune...
  166. PCM reflash
  167. EFILive VI logging
  168. Will a 02 pcm work with a 99 harness?
  169. will a 01 computer work in a 00
  170. 12v ignition sorce
  171. Optimum A/F
  172. Bucking/surging & cruise affect questions...
  173. Editing MAP Values, other affects
  174. How do I tap into the fuse box
  175. Recommendations using LS1Edit
  176. Increasing VE = Increasing LTFT's??
  177. check engine code???
  178. Tach Wire
  179. Weird rpm rising
  180. HPTuners - Cannot determine correct bootloader!!
  181. P0131 is driving me CRAZY! Gremlins inside.
  182. Scanmaster pinout?
  183. WOT fuel trim questions
  184. ABSINOP and ASR lights on after dyno
  185. "Field Harnesses" and PCM pinouts
  186. ls1edit in shops
  187. air temperature module upgrade necesary?
  188. Who has the best mail order tune?
  189. Worth tuning?
  190. PO336 Crankshaft Position Sensor code...
  191. just finished H/C install on my procharged 98
  192. engine dies on right hand turns
  193. what is all done on a Dyno Tune??
  194. More Performance, Inc
  195. How to delete skip shift with HPtuners?
  196. maf lb/min
  197. reasons to not go into pe
  198. What all is needed to hook LM-1 to HPTuners?
  199. Finally ordered HPTuners
  200. timing drops to -64 degrees
  201. ses misfire after 30lb. injector swap???? help
  202. check engine light, high flow cats??
  203. Is something wrong?
  204. 04 4.8 silverado tunning ??'s knock retard and ve
  205. is there anyway?
  206. is there anyway
  207. which tuner to use
  208. Dual versus Single WB Tuning/Monitoring
  209. Drilling TB vs reseting TPS ?
  210. Ordering HP Tuners today, have a question...
  211. Mail Order Tune Vs Dyno..
  212. Car died at a stop from tuning???
  213. Dont know what tuner to buy. Help?
  214. My first histogram after "magic stick"!!
  215. Anyone ever screwed with a Holley Pro-Jection 4di?
  216. car won't attempt to start! no click or anything
  217. Car won't start on first try???
  218. RWTD timeframe
  219. Any body tried Harlan 2 step with FAST
  220. Code 57 pulled from the BCM
  221. anybody hook there aussie (Techedge) DIY wideband to hp tuners?
  222. SES Light/Header install
  223. rev limiter hp tuners
  224. fan settings hptuners stock thermo
  225. Oil Pressure be read while cranking
  226. Boost referenced regulator PCM tuning questions....
  227. Turing off airbag codes with HP tuners.
  228. My MAFless tune/log results
  229. Tsp Tune ?
  230. transgo shift kits come on in...
  231. Phantom SES light
  232. Car cranks but kills????
  233. No more LSEdit on new GM cars?
  234. Tuning shift points for MPG / in-town driving?
  235. So whats the excepted way of MAF calibration for today?
  236. Lq4 Pcm
  237. unbalanced ltrims
  238. Throttle Control Module...
  239. ls1 edit tune for a bolt on car
  240. HPtuners compare question...
  241. ses light
  242. fuel injector upgrade..../hptuners/????'s
  243. One more time - 98 to 99+ PCM
  244. Someone experienced review these logs please
  245. P0342 and P0343 codes.....know what they are, need advice on the cause
  246. IAC position vs airflow discussion
  247. C5 Timing Drop Out
  248. MAF Tuning
  249. EFI Live Spark Table question
  250. is my engine in limp home mode?