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View Full Version : C4 ZR-1 Technical Postings

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  1. TPS response... (18 replies)
  2. 1990 #2180 Dyno pull (12 replies)
  3. New (to me) ZR1 with Trans Problem? (19 replies)
  4. Fuel Injector with Blue Cap On End (10 replies)
  5. A little ditty on Timing. When there's enough. (0 replies)
  6. Need Source for Black Chassis Paint (6 replies)
  7. Underhood Light Switch (18 replies)
  8. Squeeze check; static? Dynamic?? Best way? (2 replies)
  9. Air Horn Porting (8 replies)
  10. 92 Z NIGHTMARE (30 replies)
  11. Yun's rear brake upgrade - part 2 (8 replies)
  12. Yun's rear brake upgrade - Part 1 (10 replies)
  13. Why the early resonator problem? (4 replies)
  14. pre dyno pull question (8 replies)
  15. Secondchance - 380 build begins! (171 replies)
  16. Coolant Temp Sensor (9 replies)
  17. New to forum and a question. (6 replies)
  18. Anyone use TTS Scan software? (3 replies)
  19. Can Sec Vac solenoid be jumped, to detect vacuum leak? (0 replies)
  20. Need Tech 1 or software equivalent... (0 replies)
  21. Clutch issue after storing car (3 replies)
  22. '95 Clutch Safety Switch Part #??? (11 replies)
  23. idle (6 replies)
  24. 1992 mustang dyno results (7 replies)
  25. Another Left Rear Popping (4 replies)
  26. A C SWITCH (3 replies)
  27. Just got my own Mod 4 DTC 61... (0 replies)
  28. Oil Pressure? (16 replies)
  29. The dreaded No Start (13 replies)
  30. Falling on it's face (6 replies)
  31. Will not fully seated Memory Clibration module always... (14 replies)
  32. Bad Alt. Codes 61 & 63. (27 replies)
  33. Loose spark plugs (8 replies)
  34. Recommendation for cats (12 replies)
  35. Crankcase vacuum pumps (2 replies)
  36. Looks like my left bank Cat just died (14 replies)
  37. Coolant leakage problems (5 replies)
  38. Looking scanning\tuning software (1 replies)
  39. Someone on boards here using re-usable gasket material? (5 replies)
  40. 402 Build Project Udate (59 replies)
  41. curious if anyone has any info about this Co. (3 replies)
  42. Intake Manifold Removal Question (10 replies)
  43. Window problem; anyone beeh here? [snappic] (7 replies)
  44. Resurfacing a flywheel (1994)? (8 replies)
  45. Seatbelt questions (13 replies)
  46. Wheel bearings? (10 replies)
  47. Alarm question. (10 replies)
  48. U-joints and where to buy (2 replies)
  49. Haibeck Piggyback Chip Update (6 replies)
  50. strange surge (13 replies)
  51. Limited Slip Type? (6 replies)
  52. Rubber bushings (3 replies)
  53. AC questions for 1990 (0 replies)
  54. Disappearing IAC counts (4 replies)
  55. A/C Compressor Question:ZR-1 Vs LT1 (9 replies)
  56. Pcv elbow source (4 replies)
  57. Interior lights (2 replies)
  58. Removing Plenum Pressed Fit Fittings the Easy Way (5 replies)
  59. White 1995 ZR1 (10 replies)
  60. Napa Oil Filter # 1324 (3 replies)
  61. A/C Blower Fan (2 replies)
  62. A/c pressure conformation. (5 replies)
  63. A/C question (3 replies)
  64. SPAL FANS and 2 ROW DEWITT'S TECH Notes (32 replies)
  65. Secondary Actuators, Upside down or Not (21 replies)
  66. Replacing a windshield question... (20 replies)
  67. Heavy popping in left rear (U's? Half shafts?) (22 replies)
  68. o2 Sensor extension harness (4 replies)
  69. Loose fasteners (9 replies)
  70. Fuel Metering (0 replies)
  71. Alright!, new car and first troubleshooting!!!! (12 replies)
  72. Need an ac compressor (7 replies)
  73. The Dreaded No Start (62 replies)
  74. Coolant issue (11 replies)
  75. Need replacement clutch kit for '94 (9 replies)
  76. 6l80e or 6L90e for our ZR-1's? (18 replies)
  77. secondary port throttle solenoid (2 replies)
  78. Looking for ECC info (12 replies)
  79. Unknown strange engine noise (22 replies)
  80. Easiest way to remove CDM Radio Module ?? (9 replies)
  81. Starting issue (22 replies)
  82. Camber Brace Help (8 replies)
  83. Mouse Fortress? (3 replies)
  84. It took nine years (0 replies)
  85. Plenum Done! (8 replies)
  86. Need thread pitch / spec / dimensions... (9 replies)
  87. A/C Went Out (20 replies)
  88. Standalone ems questions (0 replies)
  89. Air Temp Sensor (2 replies)
  90. Anyone got '90 Owner's manual in .pdf? (0 replies)
  91. 500 CI LT5 (5 replies)
  92. Alternative source for cheap functional Bose speaker amplifiers (28 replies)
  93. Few problems on a 1990 ZR1 (4 replies)
  94. Drop in Dewitt radiator install pics...... (6 replies)
  95. Anyone have any ideas about early 90' ZR-1??? (10 replies)
  96. Gear ratio choice (28 replies)
  97. "Off the hook" NO start. (4 replies)
  98. For ScottFab- Ball Joint removal (7 replies)
  99. Jack stand placement (2 replies)
  100. aftermarket exhaust system question (1 replies)
  101. 1990 ZR-1 cranks but won't start (13 replies)
  102. Anyone set up to spray test injectors? (5 replies)
  103. Removing Cam Cover Bolts the Hard Way (39 replies)
  104. Tony D's Project corner (Oil catch cans) Part 2 (17 replies)
  105. Tony D's Project corner (Oil catch cans) (1 replies)
  106. Tony D's Project corner (Heat extraction vents) (3 replies)
  107. Head gasket failure (20 replies)
  108. Engine loses power when starting off. (29 replies)
  109. Removing Rocker Panels (4 replies)
  110. Tech 1 scanner owner manual PDF's (1 replies)
  111. Can a dual mass flywheel come apart / get worn? --- (3 replies)
  112. Clutch slave (13 replies)
  113. oil temperature rises too high (3 replies)
  114. Windshield Tear Offs? (21 replies)
  115. Cleaning engine parts. (7 replies)
  116. Anyone use Mishimoto silicon hoses? (0 replies)
  117. Draining the fuel tank (3 replies)
  118. Weatherstripping (10 replies)
  119. Snap-on MT2500 scanner?? (2 replies)
  120. How To: restore door-handle courtesy lights (17 replies)
  121. WTB and information on scanner (0 replies)
  122. will c4 zr1 spare fit a stock c5 (6 replies)
  123. Exhaust question again / different (1 replies)
  124. Fuel injectors (9 replies)
  125. Anyone got vids of porting their hardware? (10 replies)
  126. DIS module bent pin (0 replies)
  127. 1990 LT5 emissions fail (30 replies)
  128. Shelby wheel question (3 replies)
  129. FYI & Help: Cadillac CTS Spare Won't Work (11 replies)
  130. Which headers? (33 replies)
  131. LT5 PS pump pressure? (5 replies)
  132. Tips / how to change oil? (12 replies)
  133. Dielectric grease (6 replies)
  134. For the mathematicians (23 replies)
  135. Spark Plug Removal Question (13 replies)
  136. Air conditioning (1 replies)
  137. C6 Wheels/Tires (7 replies)
  138. Fidanza FlyWheel (24 replies)
  139. Exhaust versus Power versus HP (9 replies)
  140. Ignition Coil posibilities for the ZR-1 (13 replies)
  141. power switch problem (1 replies)
  142. Initial thoughts on Pete's Intake/Exhaust cam combo (38 replies)
  143. Engine Wiring Harness (0 replies)
  144. Lingenfelter packages (12 replies)
  145. Wierd coolant shenanigans? (9 replies)
  146. Power Chip or module (8 replies)
  147. Is the tensioner for the serpentine belt supposed to move a lot? --- (9 replies)
  148. Power Switch light (1 replies)
  149. DIY Vacuum Line Replacments (15 replies)
  150. Quick question on the 90 A/C (0 replies)
  151. 1991 ZR1 - Possible Issues (3 replies)
  152. Vibration under acceleration/Loss of power (9 replies)
  153. IH to head; Gasket Failure (14 replies)
  154. Need Moral Support - Starter Seized Post Plenum Pull (10 replies)
  155. DIS Failure symptoms? (47 replies)
  156. FX-3 Control Module programming (15 replies)
  157. Two holer? (8 replies)
  158. IAT Relocation? (12 replies)
  159. California ZR-1 ???? (16 replies)
  160. What now? (23 replies)
  161. 1990 lumbar bladder replacement (3 replies)
  162. Alternator killer (15 replies)
  163. WAZOO - Plenum Pull Work Day, Burgers, & Cruise - This Sunday in Reisterstown, MD (8 replies)
  164. Dynamat Question (7 replies)
  165. Air Injection Reaction Pump unplugged? (3 replies)
  166. Gage Cluster (16 replies)
  167. Transmission fill / drain plug question (12 replies)
  168. Antenna Issues (13 replies)
  169. NON ZR-1 Technical Help needed (36 replies)
  170. Ordering New Wheels & Tires and need some guidance (19 replies)
  171. Had a quick question about choking on deceleration. (15 replies)
  172. WHat to do when you cant wait for ZFDOC trans plates??? (10 replies)
  173. B & M Ripper Shifter (10 replies)
  174. vibration from gear shift lever (7 replies)
  175. Electrical starting system shutdown-could be nuclear meltdown (25 replies)
  176. Best scanner / laptop software? (11 replies)
  177. Starting Issues (1 replies)
  178. What say you, Graham? (29 replies)
  179. Chassis Lube (8 replies)
  180. Does the ZR-1 Require a special tow hook or other towing requirements? --- (24 replies)
  181. Starter upkeep? (4 replies)
  182. Back side grounds (7 replies)
  183. Largest ever? (7 replies)
  184. Rear Assembly Panels (4 replies)
  185. Would injector problems show up on an Engine Dyno? --- (17 replies)
  186. Leaf spring separation? (11 replies)
  187. 90 Accessory Plug??? (3 replies)
  188. DTC 32 EGR (5 replies)
  189. Accessory Console Wiring (14 replies)
  190. DRM Coil overs, spring rubbing half shaft (5 replies)
  191. PF-9 flilter (0 replies)
  192. Slave Cylinder Replacement (3 replies)
  193. Secondary Remove guide? (16 replies)
  194. Headlights clicking (5 replies)
  195. secondarries (88 replies)
  196. Part 1 Windshield A pillar weatherstripping REDUX (8 replies)
  197. Part 3 Windshied A Pillar Weatherstripping redux (8 replies)
  198. Relays Needed (6 replies)
  199. Before I break something - cargo light (4 replies)
  200. 95 ZR1 Oil Leak Question (17 replies)
  201. What MODS Have You Done To Your ZR-1?? (55 replies)
  202. Filter list (5 replies)
  203. Callaway Exhaust Center Section (9 replies)
  204. Put a drain in your D44 (14 replies)
  205. Sprung a leak (4 replies)
  206. Interesting oil test write-up (9 replies)
  207. Automotive principals 101 (20 replies)
  208. ZF6 Reverse Lockout Question (4 replies)
  209. PCV Vacuum connection to dual connecter (3 replies)
  210. Will a bose radio system from a 1993 install in a 1991 ZR-1? (7 replies)
  211. Automotive Principles (4 replies)
  212. Replacement radio. (13 replies)
  213. AC Vacuum Pump and Oil (44 replies)
  214. Heater Hose Connectors on Thermostat Housing (6 replies)
  215. Service / Repair Mesa, AZ (4 replies)
  216. Valet Key for New Owners (0 replies)
  217. Power Mirrors are inop (6 replies)
  218. Mobil 1 High Mileage (21 replies)
  219. engine cuts off intermittently (0 replies)
  220. white noise sound behind your center dash console? (22 replies)
  221. Need some glass date codes! (1 replies)
  222. LT5 Engine Paint (19 replies)
  223. Clutch? (10 replies)
  224. Plenum Pull Advice, Starter Rebuild, MAP Sensor Info (102 replies)
  225. synthetic oil for LT 5 (18 replies)
  226. Delco Bose AUX Input soldered connection... (32 replies)
  227. Diagnose - 2,500 rpm Stumble Miss - 1991 8k mile ZR-1 (22 replies)
  228. Knock sensor picture? (9 replies)
  229. Failed emissions, high HC and NOx. (14 replies)
  230. Sec port vacuum; dedicated? (1 replies)
  231. new ZR-1 owner needs help (9 replies)
  232. Repair Shop? (21 replies)
  233. hose questions?? (5 replies)
  234. Battery trouble (6 replies)
  235. Bose Speaker Amps/radio face (38 replies)
  236. ECM codes (7 replies)
  237. GM to revive LT5 name (42 replies)
  238. 'Occasional' loping idle... (11 replies)
  239. Not sure where these hoses go and if there is a hose missing. (7 replies)
  240. Winter Projects (0 replies)
  241. Bright days driving into the sun (23 replies)
  242. Water pump or hose? Thoughts. (12 replies)
  243. Anyone care to guess... (64 replies)
  244. Leftover Parts (2 replies)
  245. Removing Radio/Speakers for New Owners (12 replies)
  246. DC resistance of the AC compressor clutch coil? (5 replies)
  247. Re-located air dam sides??? (8 replies)
  248. LED Lights for your Clamshell Underhood (20 replies)
  249. Seat side bolster removal (4 replies)
  250. How much boring inside the cylinder liners? (7 replies)