View Full Version : PCM Diagnostics & Tuning



  1. tps showing 1% WTF?
  2. P0172 & P0175 Codes, VE tuned in, Maf Recalibrated?
  3. Autometer Pro Comp Tach Install
  4. Does a tune with A4 line pressure @100% make a difference at WOT?
  5. Help!!! Cold start with A/C on sucks!
  6. tuning from MORE PERFORMANCE
  7. front o2 sensors
  8. Please read, info needed asap PLEASE.
  9. Timing rising after 6600 rpm?
  10. Need help with Hypertech power programmer
  11. Those racing chips you see on ebay
  12. Electrical Issue.
  13. Running SD with an automatic all the time...
  14. Blower tune vs. N/A tune, what chagnes?
  15. Starting Problem...No power to the Fuel Pumps...intermittently
  16. Help with tuning a 408-where do I start?
  17. New Tuner Questions
  18. Anyone Know Where To Rent A Hypertech Power Programmer
  19. How To FI Tuning?
  20. air system questions
  21. Diablosport Download tunes
  22. HPPIII won't turn on...suggestions?
  23. Detonation with excessive KR
  24. PCM code....Not Ls1 but GM
  25. Which tune ?
  26. Connecting wideband to PCM
  27. Controlling LTFTs
  28. Wire harness question.
  29. Post your tips on eliminating bucking here!
  30. question about 150 IAT reading causing retard?
  31. Any Good Shops Want My Business?
  32. p0307 cylinder 7 misfire
  33. Delta Chip alternative
  34. Need help!! Throwing codes
  35. Growing Pains
  36. Low Voltage Bank 1 Sensor 1
  37. Cheapest way to get started?
  38. wot fueling question
  39. Interesting - Speedo calibration
  40. Code Delete Charity
  41. How do I retard timing with the Diablo Predator?
  42. bolt-ons and turns out I'm gettin KR 5degrees worth
  43. Adjusting timing after ve table
  44. ATTN: WS6FirebirdTA00
  45. o2's read slow sometimes others they are fine
  46. HPT bin from supercharger setup?
  47. wb readings during decel
  48. L Trims
  49. mail order tune....
  50. Deleting AIR, revisited....
  51. Vinci Hand held tuner Error !
  52. having some odd throttle issues after latest tune, and dont know why
  53. HPTuners or LS1.edit-which one?
  54. What is everyone getting for ac airflow adder?
  55. hesitation
  56. Car sounds terrible!!
  57. Reset codes?
  58. HP TUNERS help on fuel tabs...
  59. Wheel Sensors - PSI
  60. HELP -- PO131, PO137, PO151, PO157 codes - new sensors???
  61. All Tuners please read.
  62. question about tuning shift points, never done it before...
  63. any ideas on po172+175
  64. Whats the stock timing on a 98 Z28 A4?
  65. Tuning out lope with BigStuff3
  66. Problem programming LC-1
  67. Cheapest decent wideband o2 setup?
  68. 6.0L ECM and harness
  69. Few problems with tsp tune.
  70. messing with overspeed and underspeed spark correction
  71. EFI Tuning options
  72. looking for some help, getting constant 4* KR, at 19* WOT
  73. Looking for stock tune
  74. All this idle stuff is getting me ...........
  75. How the MAF really works
  76. this is odd, tcs off light came on when i reved up???
  77. Really Wierd Ft Problem
  78. Switched from M6 to A4, how do I fix the speedo?
  79. any tuners in the IA,NE,SD corner
  80. HP Tuners with bad 02's...bad???
  81. my impala and tahoe
  82. Idle 800 below 10 mph, idle 1000 above 15 mph WTF?
  83. where to buy ls1 edit?
  84. Low Voltage SES codes
  85. Help Me Please
  86. Codes
  87. what does adaptive idle control?
  88. is there any way to adjust the speed the car corrects fueling when at idle?
  89. VE Spreadsheet
  90. Mulitple Codes
  91. when to change 02 sensors?
  92. 1998 tunning?
  93. Pontiac Firebird 1991
  94. SD tuning and automatic, issues idling
  95. 1st tuning experience
  96. Timing & all idle tables w/ bigger cam
  97. HPT and LC-1 not working right...HELP
  98. throwing some codes
  99. HP Tuners Wide Band Question
  100. Yeah!!! i just ordered my hptuners
  101. problems with pe need help
  102. efi live tuning....at efilive.com/forums
  103. I'm really confused....
  104. Wanting to learn how to tune...
  105. Corvette:GM DESIAC gms/s - Is this in HP Tuners???
  106. IFR for 42# injectors??
  107. view past codes?
  108. HPT question about Desired IAC steps vs. Desired idle effective Area
  109. Reset to Stock-LTFT????
  110. Help...how to capture a dying car..
  111. Symptoms of an erratic Crank Position Sensor?
  112. Professional tune!?!
  113. STIT, LTIT arent consistent in 180* coolant temps?
  114. TPS problem
  115. H/C Swap completed, Quick Idle tuning question.
  116. Techedge WB with Hptuners
  117. h/c car hunts for idle EVERY time it is started up?
  118. maf tuning method and strange trims
  119. Help me get rid of these pestering gremlins!
  120. A/C and idle. wont stay started. Wont to change in HPT?
  121. Weird Idle Issue after WOT?
  122. Please help me diagnose this problem
  123. i want absolute timing control but can't get it.
  124. Do i need a tune
  125. getting some random knock?
  126. can someone help me with a code
  127. Wideband in stock O2 bung for SD Tuning???
  128. 99z jus dyno'd
  129. Help with codes
  130. HP Tuners Problem
  131. what are the conditions for closed loop?
  132. Another VATS question,,, did the search..
  133. help on resetting computer :(
  134. Ordering Megasquirt for my 98, what all do I need to order?
  135. tc shutter while driving in gear locked
  136. SES Light
  137. Tune Parameter HELP!!
  138. auto criuse controll
  139. Best Tuning Route to take?
  140. Problems with STFT tuning???
  141. ?? Lean, to Rich ?? someone explain
  142. help 97 z28 no start no com. with pcm
  143. SES light just came on, and I dont like it.
  144. Secondary AIR relay location?
  145. Tranny Swap A4-M6
  146. VE Tuning (octane tables)
  147. EGT data in graph form inside...may be useful
  148. Getting frustrated with negative trims
  149. traction control took a vacation
  150. Built motor, raised compression, nitrous and 93...
  151. 3 Altenators dead in 3 weeks! help please!
  152. if i lower pe, how should i increase the ve in those areas?
  153. prop fuel, my results did not show HP Tuners explaination...
  154. Initial tune for homebuilt turbo system
  155. Initial tune for homebuilt turbo system
  156. Ok need a tune but how?
  157. steps i took in getting idle, come in and add to it/correct me haha
  158. TCC - tuning question
  159. ODBII Pass or Fail???
  160. Anyone on here have experince with tunning STS kit
  161. light throttle load surging... P0101 ? MAF table ?
  162. Who can edit 01 V6?
  163. did some fiddling around with trying to smooth out idle...
  164. ok lets try again, + trims on start up wont go away, help me fix it
  165. wiring harness 99-02 the same?
  166. Would there be intrest in a 2 step for lsx
  167. my LTFT and KR
  168. o2 sensor question?
  169. How to lock a 4L60 temporarily in 2nd with HPT
  170. 1997 Chevy Camaro RS 3800 V6
  171. hp tuners on top of ls1 edit???
  172. HP Tuners bin file
  173. Open Loop
  174. Max allower enrichment
  175. Help with timing on a boosted application with Megasquirt for fuel
  176. Got a DTC P0132
  177. 02s not the same at wot.
  178. Too Rich
  179. heat cause surge?
  180. MAF calculators in excel
  181. ABS sensor pulses per rev.?
  182. custom tune.
  183. dyno tuning for partial throttle
  184. Rationalize this with me...
  185. Cartek tuned Turbo LS1's in here
  186. injector PW from 11.8 to 13.2 WOT, how much more fuel is that?
  187. Help with adding fuel to 2000 WS6
  188. Help! Very confused
  189. idle overspeed questions, does it need to be so low?
  190. PCMforless
  191. adaptive idle changes, time delay question
  192. Factory ECU working as a 2 step
  193. Cam guys: what is your normal change in idle speed per set idle speed?
  194. scan then plug maf in?
  195. Anyone near Orlando. FL that can edit pcm
  196. dos and donts of hypertech
  197. LS2 Harness/PCM
  198. 160 Thermostat
  199. Car hesitates when I initially start it, take a ride and stop on the gas.
  200. Tip in Detionation
  201. MAF tune changes shift?
  202. for those newbs with EFI Live v7...I'm working on
  203. whats the correct way to desensitize knock sensors and still be functional?
  204. which power programmers are best?
  205. No Power after 4000 Rpm
  206. Car starts then dies, won't run without peddling
  207. Effects of installing my *new* SLP Smooth bellows
  208. tune LTFT with MAF?
  209. Tuning in Arizona
  210. engine light
  211. spark dwell time tuning ?
  212. Question on IAC and Autotap
  213. A few ?'s with HPTuners 02 SS
  214. tuning newbie
  215. Disconnected PCM and now willnot start
  216. AFR...what gear?
  217. missfire help!
  218. Speed Density tuned procharged ls1
  219. Getting better gas mileage.
  220. Running Lean after MTI Lid and bellow...Help!
  221. 160 T.stat and handheld programmer question
  222. O2 extensions
  223. My Hptuners/LC-1 install writeup
  224. Security/Headlight Question...(Malfunction)
  225. IAC position vs Desired IAC count
  226. Need Help.
  227. HPTuners 2 bar on a '98?
  228. Bad O2 Simm - swap or pop?
  229. 3rd blown cam sensor - UHG!
  230. My PCM has a short term memory
  231. Am I in the perfect range?
  232. Can anyone explain this? (Scan pic inside)
  233. lots of ?'s did the search may have overlooked but am running out of time
  234. MAF operates properly
  235. please post some cold start info for compairison for me please
  236. This may be a stupid question(LTFT&STFT).
  237. what can i do for this code : p0801
  238. Stupid Question,Please Help Me Under Stand TPS Voltage
  239. LS1edit scanner DTC codes
  240. trunk mount battery probalems
  241. HPTuner question
  242. should DFCO changes be made or no?
  243. MAF Low Input, High Input?
  244. Security Light?
  245. VATS, BCM or Unknown????
  246. Question about handheld prgrammers
  247. tuning with safc
  248. fuel trim cell pictures
  249. When tuning VE...is it ok to go WOT???
  250. Mail order tune for Procharger