View Full Version : PCM Diagnostics & Tuning



  1. O2 sensors not connected, no SES or O2 codes
  2. Hypertech Keep or sell?
  3. Looking for a base tune to load for turbo build
  4. Codes are thrown
  5. can dealership tune my pcm to my 3.42 gear
  6. need help with cats
  7. Will this void my Cat replacement?
  8. how do you delete p0420 code with diablosport?
  9. Car stays in open loop, runs like crap if forced into closed loop
  10. flashing ses light
  11. 12 bolt= codes?
  12. Idle rpm for California smog test
  13. roadrunner question for owners
  14. Car bucking and running rich under part throttle?
  15. service engine soon light flashing...
  16. O2 Sensor extension
  17. help on 02 sensor readings..
  18. In the market for a new wideband controller - Professionals
  19. pick a wide band???
  20. please help with new engine start up
  21. is it true that it takes more than 45 min. on a dyno to get a good tune?
  22. Low coolant light??????????
  23. Treat yourself for the Holidays Porting and Tuning Special
  24. 4x4 EFI scan tool.
  25. msd dash hawk
  26. Newbie Tuning for Emissions
  27. 99 computer and a 2000' harness?
  28. LS1 Edit Compatability Issues
  29. how to tune for following mods with diablosport?
  30. Help with megasquirt
  31. GM MEFI-4 Conrtoller Tuning
  32. Factory Alarm Question
  33. Backstreet Performance Medina Ohio
  34. Hptuners expertise needed.. Datalogs inside.
  35. AIR delete or not? That is the question.
  36. what should i use to tune????
  37. looking for scanner/code reader w/....
  38. Code P0401
  39. Non LS1 question........ 95 mustang GT tuning
  40. Logging wideband
  41. PCM seems powerless
  42. P0101 Code
  43. Cobalt ss cold start
  44. hp tuners
  45. WideBand after High Flow Cats?
  46. Map not reading
  47. Getting a dynotune this weekend. What should I expect?
  48. po410 code
  49. LC-1 install question
  50. 93 tuning...
  51. My LS2 is not healthy
  52. timing advance in neutral??
  53. ECU problems
  54. can i use a 2000 ecm in a 98
  55. Mail order tunes?????
  56. hypertech 3 question
  57. egr low voltage code
  58. po300 nightmares scanned with hp tuners
  59. Does Gearing affect A/FRs?
  60. does vss have anything to do with idle?
  61. High octane table
  62. car in shop may need computer?
  63. OL vs. CL with LT's
  64. In Need of megasquirt tune
  65. Flashing A4 to M6
  66. tuning question
  67. help please
  68. LS1M question
  69. Help!!!!!P0322
  70. AFR Vs. Ethanol %
  71. Www.thetuningschool.com
  72. IAC wiring
  73. Can I remove my rear o2 sensors?
  74. Cold Start Problem
  75. Has anyone found a way to make the digtal 7 boxes work?
  76. Diablosport predator help please!!!
  77. HP tuners used does not work?
  78. price on used hp tuner or efi live
  79. 03-05 lq4
  80. LS1 swap bogging anything other than light throttle
  81. High idle only with AC compressor comanded on / 05 Vette with APS TT
  82. 02 Sensor Codes
  83. 14point7 help
  84. System Too LEAN!! Need some advice
  85. bigstuff 3 problem
  86. possible bad MAP sensor wih no code?
  87. flashing SES, but no codes to show misfire,very RICH
  88. Best tuner in chicago area
  89. Quick HPT question
  90. aem ems anyone using
  91. New cam and ported FAST manifold which way on tune?
  92. 04- CTS-V P0300/PO500 codes..help?
  93. car wont crank
  94. Tuning MAF tables
  95. Tuning Help- High O2 readings
  96. Where did you learn
  97. 1990 corvette ecu problems
  98. Anyone Run Stock Eliminator or Bracket Race?
  99. DiabloSport 04 GTO Project Car
  100. replaced everything, rich, still throw heater circuit and misfire codes
  101. Please review log - Tranny slipping?
  102. Injector offset
  103. 2000 engine harness in 1998 car?
  104. Is it worth it to have a baseline dyno run?
  105. what are ltft & stft 3 & 4?? #'s very high
  106. Help learning to tune - Stock 98 TA with Incon TT kit @ 7-8psi
  107. Help! Odd goings-on in the upper rev range - no codes, nothing funny in the log...
  108. hptuner adding timing under boost
  109. E85 wibeband tuning ?
  110. I need help!! Tuning issues... Spark??
  111. got question about ignition module connector.
  112. Tuners
  113. WB o2 vs. NB o2 AFR....WTF!!
  114. Help, car wont start. Vats/security related
  115. Re-tune after major exhuast change ?
  116. Things That Make You Say....WTF BATMAN!!!!
  117. Mafless Tune!...
  118. dtc 1133 freeze frame help!!
  119. noob: flash tuning
  120. A4 tune
  121. Brake related warning lights; help?
  122. GM Techs need some help
  123. Voltage on MAP ground circuit
  124. Self Tuning Easy EFI from fast
  125. Too technical for me. Please help.
  126. Changing Auto to Manual
  127. LT1 tunercat files needed
  128. Freakin COdes
  129. A real power pid?
  130. Going to a 3 bar MAP
  131. My First Engine Tune (i'm excited)
  132. FAST flash programmer
  133. Looking for 2 bar SD HP tuners tune
  134. how to run nexus wideband into hptuner interface
  135. auto calibrations for manual?
  136. What do i need to know before I tune a 98??
  137. Setting up Sock ECU/harness as "Standalone"
  138. Cannot Pass Security Codes
  139. Need help! - Car won't shift to 3rd at WOT
  140. 60# injector tune
  141. harlan 2 step instructions
  142. Ideas/help adjusting my nitrous tune for NA
  143. Bad tr 230 tune, need to copy one.
  144. HPT tune for bolt on MS3??
  145. Theoretical Tuning question here
  146. o2 sensor Bank1 reading 1105 millivolts
  147. Changing tach output to "normal" 8cyl output in HPT
  148. Car still short shifting
  149. Idle problem!!!
  150. 2006 cts-v 2bar hp tuner help
  151. hp tuner pro
  152. lm-1 wide band smoothing the graph
  153. If Catalytic deleted...
  154. Changing to Speed Density
  155. tuner cat
  156. Need 99 Harness info
  157. P0102 MAF question
  158. oil pressure wire pinouts
  159. Elect system
  160. OBD II Question....Help
  161. Help with PO200 code
  162. Trouble Code P0106??
  163. MAF is consistently maxing out - Options?
  164. mail order tune, or something on my end.
  165. Fans staying on
  166. Scanmaster wiring
  167. Intermitent starting
  168. Does it matter
  169. Diablosport predator please help!!!!!
  170. Jeremy Formato Tuning and Porting Dec 4th and 5th in Coral Springs
  171. TPS, anyone no the
  172. problem when launching the car
  173. Need help setting shift points
  174. can someone explain how to wire my PLX wideband to HPT pro intereface?
  175. Bucking car
  176. Maf placed close to throttle body????
  177. New MAF. SES light. tune?
  178. HELP! cooling fans
  179. Retreiving VIN
  180. classic FAST with LS1 looking for converter box for crank signal
  181. PE, whats agood fuel enrichment
  182. IAC Counts
  183. coverter lockup at WOT
  184. oxygen sensor voltage?
  185. True or False: Missfires cause the converter to stay unlocked.
  186. WOT 2-3 will not shift hits limiter
  187. TPS issue???
  188. I have the following codes, can anyone help?
  189. Can someone tell me the order of color wires for MAP sensor?
  190. Help!!!! I have Seven codes!!!!
  191. Going back to stock- how do get rid of dyno tune??
  192. larger injectors?
  193. Did I ruin my MAF?
  194. Question about HP tuners
  195. my tuners OWN WAY OF TUNING
  196. '96/'00 Vortec VCM 5400 RPM Limitation...
  197. Computer probs
  198. codes P0171 P0174
  199. How- do you Tune??
  200. ABS delete codes. Here is the pin configuration
  201. Idle Issue only when moving
  202. Will this cause damage to my transmission?
  203. Cos3 to cos5
  204. are 98 ls1 the least valueable !!!!
  205. computer problems
  206. anything to tune everything
  207. what is involved in swapping a 1995 PCM into a 1996?
  208. Super Split BLM issue
  209. why is my aeroforce saying i'm lean but.
  210. Idle Problem... not a chevy but need help
  211. What pcm should i use?
  212. VSS output on E38
  213. picking up autotap soon. how necessary is the GM specific software?
  214. Tuning ls1 in arizona??
  215. FIRST START 402 with a 346 H/C tune; question . . .
  216. Does 02 sensor placement affect tuning?
  217. 60 grams per cyl is that correct
  218. Vinci/Crane Handheld tuner question?
  219. tuning ecm40 with 4l80e
  220. MAF change
  221. Anyone have any tuning issue snap a starter?
  222. diablo tuner help
  223. LT1 Idle Speed?
  224. 96lb injectors??
  225. sct hand held
  226. Car won't start with new key. please help!!
  227. Speed density replace MAF
  228. Need STS Diablosport tune
  229. What can I get rid of?
  230. Help new pcm and coil still throwing p0357
  231. Her's a New One: Mathmatically Constructing a VE/Spark Table
  232. HPT will not load drivers on vista
  233. Need a good starting file for modified 04 GTO
  234. will it need to be re-tuned?
  235. unplugged pcm(replugged it in), cranks, wont run
  236. car wont start all of a sudden
  237. What the hell is this code?
  238. Need an 8.1L stock bin file for HPtuners
  239. program for ecm E40 to run 4l80e trans help
  240. In need of Megasquirt tune
  241. Upgrading to pro question
  242. Bank 2 O2S bad?
  243. pink wire on maf,fluctuating 5v or 12v
  244. Shifting at 6k rpm, why???
  245. Enabling fan in truck ecu 03 Tahoe
  246. Any MAJOR difference between HPtuners and EFIlive?
  247. diablo stock tune questions??
  248. Can HP or EFI scan for....
  249. timing question
  250. cold tonight 40 dg, car will run leaner