View Full Version : PCM Diagnostics & Tuning



  1. Who can test my stock engine harness?
  2. Flashing SES light on deceleration....what does it mean?
  3. Under what conditions does the A/C get turned off?
  4. Still cant figure out idle tuning
  5. What tunning software to buy?
  6. what years are alike?
  7. read/was told to raise PE map with a cam, technical explanation of why please?
  8. Fuel added during WOT - LTFT?
  9. Thank you Redline Motorsports! [Dyno #'s]
  10. Question on IFR changes for new injectors..
  11. Cylinder Volume, skew performance??
  12. Accuracy of WBO2 in open headers + 110 race gas
  13. I need a lot of help
  14. Hp Tuner Customer Service
  15. Real-Time Vehicle Dynamics Processor
  16. Need Help!
  17. Short and Long Trim Fuel question
  18. Custom Wiring Harness...
  19. Are these any good?
  20. Easiest/cheapest way to detect knock retard?
  21. Proscan
  22. Getting your cars idle back in range 101: first few steps
  23. what system i need if i wanna run mid to low 9's
  24. Time to start her up...
  25. still having start up issues. come in and help me out, i need ideas
  26. 10* knock, WTF?
  27. EFILive/Flashscan Guys - No More MAF Spreadsheets?
  28. Have trouble with codes
  29. still getting kr, but my timing is higher than what i set it at???
  30. Coolant low problem
  31. does engine temperture reading effect engine performance
  32. what effect does the IAT have on the engine performance
  33. running lean, weak fuel pump?
  34. question for those adding part throttle timing?
  35. Hypertech power programmer?
  36. Anyone used LC-1 with FlashScan??
  37. Diff Year Bin Files
  38. logging LTRIM readings - OBD-2 software
  39. can a GM tech 2 tested be used to adjust timing
  40. Where to run wideband wiring??
  41. Help!! hot and cold idle problems!!!
  42. Philly area W/ 01 HP tuners?
  43. Aftermarket engine management dilemma
  44. hanging hot start idle + ls1edit question
  45. complete noob to tuning
  46. Stays in closed loop at WOT
  47. Excessive Delay in Receiving HPT enhanced Interface
  48. A question about HPT Scanner
  49. SES light flashes at idle with AC only
  50. HPT A4 Tranny Shift Question
  51. Blinking SES NEED HELP ASAP!
  52. Where Is Chris Marsh When You Need Him
  53. 3 Graphs of AFR DATA in REAL WORLD
  54. Inspection help
  55. Equus/Innova OBDII C.A.N. Scanner?
  56. No signal - rear O2 sensors - LS1Edit fix?
  57. correct me if im wrong...
  58. EGR/AIR (limp home mode?)
  59. Transient fuel tuning
  60. Possible TM issue?
  61. Constant high idle when moving off throttle..
  62. Misfire SES....
  63. tuner in SE michigan?
  64. Can someone look at this Autotap file if my car and see if everything is ok??
  65. Mysterous flashing check engine light
  66. Does flashscan have the ablility to unlock a PCM?
  67. last few logs got kr when giving gas at stand still?? what to do?
  68. Idle Sticks at 2000rpm
  69. Help: PLX M-300 Wideband
  70. tuning question
  71. advanced timing timing too high?
  72. Someone check my tune for me
  73. Speed Density Tuning Ready to Take Off????
  74. Generic air-fuel ratio gage with wideband?
  75. Ve OK, Now MAF?
  76. Porting the Throttle Body
  77. O2 Flatlined? Bad sensor
  78. What are you using for a scanner
  79. Ls1 Edit or HP Tuners
  80. Quick disconnect resistance concern
  81. sputtering under light load
  82. 42 LB f. iNJECTORS AND RACETRONIX 255L/H
  83. Car won't stop starting
  84. working on a new timing table, need some opinions
  85. LTIT Slow or immobile need input...
  86. Cant get the TPS Voltage to reset to zero.
  87. Tuner Experience At Dick & Connies in Clairmont
  88. HP Tuners Customer Support Rocks!
  89. Idle tuned prior to MAF or doesnt matter?
  90. o2 sensor info please help
  91. when entering numbers for iac park airflow, how do you find the right values?
  92. once in closed loop, airflow at idle goes up?
  93. Wiring harness available to run stock gauges/etc with aftermarket engine management
  94. LS1 Edit Upgrade
  95. Need help!! Engine won`t idle...
  96. Wideband AFR is different then what is commanded......
  97. AIR question (hptuners)
  98. No codes but engine check light on dash
  99. Speedometer reading is wrong , after Crane Power Tuner installed !
  100. Have a dip in Spark vs Airflow is it normal?
  101. Injector Control Circuit problems
  102. after part throttle tuning???
  103. All LS1 sensors
  104. A/C + big cams and idle..
  105. AutoTap vs. O2's?
  106. P0140: Bank 1 Sensor 2 (not active)
  107. O2 Sensors?
  108. Emergency help..WTF?
  109. Swapping a 1998 Trans am to a 1999 motor
  110. 90mm TB & Tuning with LS1-Edit
  111. Ok ,after flashing with HP Tuners ,Now I dont Have Cruise control
  112. p0300 misfire code help
  113. What could make my tranny shift late?
  114. spuradic kr at wot pic attached
  115. LS1Edit code reader - beta version
  116. Installing OBD-2 software - error messages
  117. any input?
  118. Best place for me to get tuned for new cam and n2o??
  119. bad idle problems
  120. Going back to stock....tuning questions!!!!
  121. p1154 and p0153
  122. Car Drives Like SH!T!!! MAF Sensor?
  123. Cam tuning?
  124. Tuning VE via the LTRMs Write-Up
  125. converter
  126. More Newbie EFI Live Questions
  127. solid motor mounts
  128. Pics of Monitoring Screen, Wideband/ Maximizer 2
  129. Need tuning or bad converter?
  130. KEN KELLY contact
  131. O2 sim degradation?
  132. Viewing error codes
  133. I need closed loop operation!!!
  134. P1153 Code
  135. afterstart enrichment, ect? how does it work
  136. lo res and hi res commanded afr in hp tuners, what is it??
  137. Can you tune around unbalanced banks (i.e., one leaner than the other)?
  138. some guided wisdom needed
  139. What happened to my car!?!
  140. Re-calibrate the MAF??
  141. m6 to a4 conversion
  142. HELP!!!!!!!!! car studdrs like hell
  143. ? about Pro Scan
  144. 02s, Evap read incomplete
  145. Convert 4 channel to 3 channel?
  146. IAC Park Position Airflow vs IAT, what does it do?
  147. HP tuners connection problem
  148. Check Engine
  149. 80 miles of driving...What kind of driving to I need???
  150. where can I get a good dyno tune Nashville TN area?
  151. laptop holder for the car
  152. Is this real knock retard? I am pretty sure...just looking for another opinion...
  153. Switch to true open loop tune
  154. tuning for the newbie
  155. throttle comes down slowly and jumps before idle
  156. Anyone Have P0171 Code Set?
  157. Last value or average on Histogram??
  158. Part Number for 98 SS PCM?
  159. open loop fueling question
  160. part throttle timing?
  161. little help with tuning ???
  162. Positive LTFT's, stock tune, tuning VE?
  163. Tuning parameter margin with similar cams
  164. Weather effects on idle? Need info
  165. What do i need for Twin turbo? LC-1 + Pyrometer?
  166. How does the IFR table affect the PE table?
  167. loosing idle learn?
  168. C5 will not go into SD mode
  169. Changes to be made with LS2 using LS1 PCM?
  170. Easy MAF Calibration with EFI Live(NO SPREADSHEETS)
  171. LTFT are lean, wideband is rich, now what??
  172. Need a little help please..
  173. WTF could i have done to my car???
  174. Who can tune in Colorado?
  175. LS7 Retrofit could be an issue without using the LS7 PCM!!!
  176. in hpt, can you monitor wheel speed sensors?
  177. Big Troubles with HPT I lost my PCM Please Help!!!!
  178. HELP my 99 Camaro is misfiring on multiple cylinders!!
  179. need help, how to wire in RPM input on LM-1 ???
  180. stumble at idle, help?
  181. Speed limiter
  182. low RPM misfire all of a sudden
  183. Help Please problem after rebuild
  184. Engine cuts off while driving on the highway...??????????
  185. Open LS1 Edit file in EFI Live?
  186. What is a good way to test O2 sensor?
  187. Could really use some advice on tuning after TC install...
  188. Im Curious
  189. help for tuning
  190. Emissions Help
  191. 0405 after SLP LID
  192. lc-1 probs
  193. Question About VE tuning Doc in Sticky Notes???
  194. Need Help with emissions!!
  195. Initial startup rpm drop after cam.
  196. For those with 90mm N.Williams TB and a Ybod
  197. low coolant light, and asr randomly coming on
  198. resetting the pcm after it has been dyno tuned?
  199. car running like shit
  200. Pre-tune
  201. p0174-bad to drive?
  202. Tripped a code
  203. Issues with 98...
  204. vats system
  205. autometer and stock gauge readings off by 10*
  206. Quick WOT PE Tuning Question
  207. Who runs 96 lb injectors with stock pcm & driver??
  208. Vector Motorsports
  209. can any one help me to tuning camshift
  210. This might be a tuning issue or something else.
  211. Woo! Hoo! ordered Flash scan!
  212. Is my crank sensor bad? Will start but pops, backfires, quits until I clear the code
  213. Locked PCM ?
  214. hpt speed density enhanced
  215. tuning ltft's.. changes dont do anything?
  216. Check Engine light with a system lean code
  217. Help Code Thrown
  218. hptuners looking to order any tips 2 start
  219. What temp does the IAT start to retard timing?
  220. Should I reset ECM
  221. Engine code states"slow response from o2"????
  222. Need Help
  223. MAF worksheet for EFILive
  224. Tuning for 97-98 Vette...
  225. Running out of ideas on this cold surging. Please help.
  226. I am stumped on this one
  227. Security Light
  228. Car acts up after wash!!! Help
  229. Throwing 10 Codes Neep Help ASAP
  230. What's a good PE scale factor for 10.5 AFR
  231. 2003 2500 Van wiring harness - compatible with 5.7L??
  232. trying to install Performance Tune from PREDATOR , getting Script Error message !
  233. TCC settings for C5
  234. I dont now How to tune the cam shuft
  235. HPTuners and LM-1 not equal
  236. Second SES light...
  237. WIN!! A $100 discount or Free Car License upgrade for your Efilive!
  238. Issue with connection...HP Tuners
  239. If I move the IAT closer to the TB, would it give better readings?
  240. MAP Code P0106, what could cause it???
  241. Throwing 10 Codes!!!! help me ASAP
  242. How to Tune on dyno?
  243. tuning question
  244. Does Granatelli make a Predator for 2005 5.3 Silverados?
  245. new engine- couple questions
  246. Need some LS1 Edit Tuning Help
  247. P0140 Bank 1 Sensor 2 Insufficient -help-
  248. Anyone using ProScan 2.0 ?
  249. PROS and CONS of SPEED DENSITY?
  250. my car wont run