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***The Ultimate C4 DIY thread.... write ups w/ pics..***

 
Old 04-14-2013, 10:00 AM
  #61  
corvetteronw
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Old 04-14-2013, 10:04 AM
  #62  
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Old 09-08-2013, 04:17 AM
  #63  
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I'm new to the forum, as well as being a new owner of an old '94 C4. The video for fixing the headlight motor gear couldn't have come at a better time, for my drivers side light just started making "the noise". I've ordered the bushings and am ready to have my laptop by my side, with the video playing.
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Old 04-06-2014, 01:46 AM
  #64  
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Default Main link is broken please fix

The link at the start of the thread for the majority of the how to's is broken.
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Old 11-29-2014, 01:59 PM
  #65  
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Default how to's

what the last guy said, link broken on first page, I know it's old, isn't this stuff archived somewhere. Oh yeah, new owner of an 88 C4 Convertible 4x3


update...found the working link-->https://www.corvetteforum.com/forums...go-thread.html

Last edited by 88C4convertible; 11-29-2014 at 02:16 PM.
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Old 12-16-2014, 10:32 PM
  #66  
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Default color wiring for headlight motor c4 85?or fuse ?

hi
i have a 85 c4 that i am rebuilding and i just put new headlights but i couln't find the colors of the wiring in between the motor and the headlight in the manual?
so i hot wire it and it works but driver is perfect but now passenger side is not opening anymore ?
what are the fuse for the right side ?
or what are the colors of the wires ?
sorry i got confused in the wires
thxs if someone can help me
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Old 01-13-2015, 12:06 PM
  #67  
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Subscribe -- Thanks to everyone who posts this somewhat esoteric stuff on the forum.
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Old 02-19-2015, 01:51 AM
  #68  
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Default Service Soon Light

Originally Posted by socalman View Post
Engine Trouble Codes:

1984:

code 13 =1 flash followed by 3 flashes =>oxygen sensor
code 14 =1 flash followed by 4 flashes =>coolant sensor
code 15 =1 flash followed by 5 flashes =>coolant sensor
code 21 = 2 flashes followed by 1 flash =>throttle position sensor
code 22 = 2 flashes followed by 2 flashes=> throttle position sensor
code 23 = 2 flashes followed by 3 flashes=> manifold air temp sensor
code 24 = 2 flashes followed by 4 flashes=> vehicle speed sensor
code 25 = 2 flashes followed by 5 flashes=> manifold air temp sensor
code 32 =>egr system
code 33 =>map sensor
code 34 =>maf sensor
code 35 => idle air control
code 41 => cylinder select error
code 42 => electronic spark control
code 43 => electronic spark control
code 44 => lean exhaust
code 45 => rich exhaust
code 51 => PROM
code 52 => fuel calpak
code 53 => system over voltage
code 54 => fuel pump circuit
code 55 => ecm
code 62 => oil temp

1985-1991

Code #12: Normal No Codes.
Code #13: Open Oxygen Sensor Circuit.
Code #14: Coolant Sensor Circuit Low.
Code #15: Coolant Sensor Circuit High.
Code #21: Throttle Position Sensor High.
Code #22: Throttle Position Sensor Low.
Code #23: Manifold Air Temperature Circuit High.
Code #24: Vehicle Speed Sensor.
Code #25: Manifold Air Temperature Circuit Low.
Code #32: EGR System Failure.
Code #33: Mass Air Flow Sensor High.
Code #34: Mass Air Flow Sensor Low.
Code #36: Mas Air Flow Sensor Burn-Off Function Fault.
Code #41: Cylinder Select Error.
Code #42: Electronic Spark Timing.
Code #43: Electronic Spark Control.
Code #44: Lean Exhaust indication.
Code #45: Rich Exhaust Indication.
Code #46: Vehicle Anti Theft Fault.
Code #51: Faulty Mem-Cal.
Code #52: Fuel Calpak Missing.
Code #52(1990-91 Corvette Only): Engine Oil Temperature Sensor Low.
Code #53: System Over Voltage.
Code #54: Fuel Pump Circuit Low Voltage.
Code #55: Defective ECM.
Code #62: Engine Oil Temperature Sensor Circuit High

1992-1993


Code #12: Normal No Codes.
Code #13: Left Oxygen Sensor Circuit.
Code #14: Coolant Temperature Sensor Circuit High.
Code #15: Coolant Temperature Sensor Circuit Low.
Code #16: Opti-Spark Ignition Timing System.( Low Pulse)
Code #21: Throttle Position Sensor Circuit High.
Code #22: Throttle Position Sensor Circuit Low.
Code #23: Intake Air Temperature Sensor Circuit Low.
Code #24: Vehicle Speed Sensor Circuit.
Code #25: Intake Temperature Sensor Circuit High.
Code #26: Quad-Driver Module #1 Circuit.
Code #27: Quad-Driver Module #2 Circuit.
Code #28: Quad-Driver Module #3 Circuit.
Code #32: Exhaust Gas Recirclation Circuit.
Code #33: Manifold Absolute Pressure Sensor Circuit Low.
Code #34: Manifold Absolute Pressure Sensor Circuit High.
Code #36: Opti-Spark Ignition Timing System. (High Resolution Pulse.)
Code #41: Electronic Spark Timing Circuit Open.
Code #42: Electronic Spark Timing Circuit Grounded.
Code# 43: Electronic Spark Control Circuit.
Code #44: Left Oxygen Sensor Circuit Lean.
Code #45: Left Oxygen Sensor Circuit Rich.
Code #51: Mem-Cal Error.
Code #52: Engine Oil Temperature Sensor Circuit Low.
Code #53: System Voltage.
Code #55: Fuel Lean Monitor.
Code #56: Vacuum Sensor Circuit.
Code #61: Secondary Port Throttle Valve System.
Code #62: Engine Oil Temperature Sensor Circuit High.
Code #63: Right Oxygen Sensor Circuit Open.
Code #64: Right Oxygen Sensor Circuit Lean.
Code #65: Right Oxygen Sensor Circuit Rich.
Code #66: A/C Pressure Sensor Circuit Open.
Code #67: A/C Pressure Sensor Circuit. (Sensor or A/C Clutch Circuit Problem)
Code #68: A/C Relay Circuit Shorted.
Code #69: A/C Clutch Circuit.
Code #72: Gear Selector Switch Circuit.

1994-1996

DTC #11: Malfunction Indicator Lamp Circuit.
DTC #13: Bank #1 Heated Oxygen Sensor #1 Circuit:
DTC #14: Engine Coolant Temperature Sensor Circuit Voltage Low.
DTC #15: Engine Coolant Temperature Sensor Circuit Voltage High.
DTC #16: Distributor Ignition System Low Pulse.
DTC #18: Injector Circuit.
DTC #21: Throttle Position Sensor Circuit Voltage High.
DTC #22: Throttle Position Sensor Circuit Voltage Low.
DTC #23: Intake Temperature Sensor Circuit Voltage High.
DTC #24: Vehicle Speed Sensor Circuit.
DTC #25: Intake Air Temperature Sensor Circuit Voltage Low.
DTC #26: Evaporative Emission Canister Purge Solenoid Valve Circuit.
DTC #27: EGR Vacuum Control Signal Solenoid Valve Circuit.
DTC #28: Transmission Range Pressure Switch Assembly Fault.
DTC #29: Secondary Air Injection Pump Circuit.
DTC #32: Exhaust Gas Recalculation.
DTC #33: Manifold Absolute Pressure Sensor Circuit High.
DTC #34: Manifold Absolute Pressure Sensor Circuit Low.
DTC #36: Distributor Ignition System High Pulse.
DTC #37: Brake Switch Stuck On.
DTC #38: Brake Switch Stuck Off.
DTC #41: Ignition Control Circuit Open.
DTC #42: Ignition Control Circuit Shorted.
DTC #43: Knock Sensor Circuit.
DTC #44: Bank 1 LF Heated Oxygen Sensor #1 Circuit Lean.
DTC #45: Bank 1 LF Heated Oxygen Sensor #1 Circuit Rich.
DTC #47: Knock Sensor Circuit Or Module Missing.
DTC #48: Mass Air Flow Sensor Circuit.
DTC #50: System Voltage Low.
DTC #51: EEPROM Programming Error.
DTC #52: Engine Oil Temperature Sensor Circuit Voltage Low.
DTC #53: System Voltage Low.
DTC #55: Fuel Lean Monitor.
DTC #58: Transmission Fluid Temperature Sensor Circuit Low.
DTC #59: Transmission Fluid Temperature Sensor Circuit High.
DTC #62: Engine Oil Temperature Sensor Circuit Voltage Low.
DTC #63: Bank 2 RF Heated Oxygen Sensor #1 Circuit Open.
DTC #64: Bank 2 RF Heated Oxygen Sensor #1 Circuit Lean.
DTC #65: Bank 2 RF Heated Oxygen Sensor #1 Circuit Rich.
DTC #66: A/C Refrigerant Pressure Sensor Circuit Open.
DTC #67: A/C Pressure Sensor Circuit Sensor or A/C Clutch.
DTC #68: A/C Relay Circuit.
DTC #69: A /C Clutch Circuit.
DTC #70: A/C Clutch Relay Driver Circuit.
DTC #72: Vehicle Speed Sensor Loss.
DTC #73: Pressure Control Solenoid Circuit Current Error.
DTC #74: Traction Control System Circuit Low.
DTC #75: Transmission System Voltage Low
DTC #77: Primary Cooling Fan Relay Control Circuit.
DTC #78: Secondary Cooling Fan Relay Control Circuit.
DTC #79: Transmission Fluid Overtemp.
DTC #80: Transmission Component Slipping.
DTC #81: Transmission 2-3 Shift Solenoid Circuit.
DTC #82: Transmission 1-2 Shift Solenoid Circuit.
DTC #83: Torque Converter Solenoid Voltage High.
DTC #84: 3-2 Control Solenoid Circuit.(Auto Only).
DTC #84: 2nd And 3rd Gear Blockout Relay Control Circuit.
DTC #85: Transmission TCC Stock On.
DTC #90: Transmission TCC Solenoid Circuit.
DTC #91: One To Four Upshift Lamp(Manual Only).
DTC #97: VSS Output Circuit.
DTC #98: Tachometer Output Signal Voltage Wrong.



Your research is amazing! So I have a '96 LT4 with just under 15,000mi that started flashing the light. I pinned the #4 & #12 & got the following:
C 12
- - -
1
7
9
A or R.
1.0

in that order. OK, I think I have something to work with. I just happen to have another '96 LT4 (32k mi) that runs perfectly, so I do that one for comparison. SAME codes.

I've reinstalled the gas cap a zillion times, put new gas in it, disconnected the battery which temporarily cleared the light, but it came on about an hour later while driving. I also cleaned the MAF filaments & connections on both sides - no change.
I have an OBD II scanner on the way & maybe that can isolate the problem better. Car runs strong & smooth, idles fine.

Any thoughts?
Appreciate the help.

Last edited by Silverfox1; 02-19-2015 at 01:57 AM.
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Old 06-14-2016, 11:27 PM
  #69  
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No LT5/ZR-1 tips,boooooooooo.
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Old 07-06-2016, 08:27 PM
  #70  
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Where is the 1984 Vette info the L83 and crossfire info.
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Old 07-25-2016, 06:49 PM
  #71  
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alot of info here
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Old 03-27-2017, 12:16 AM
  #72  
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Default Repairing Hush Panel (or other plastic trim pieces)

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Old 03-30-2017, 12:12 PM
  #73  
kael
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Default How to side jack your C4

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Old 01-09-2018, 02:17 PM
  #74  
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Does some one know what is that whiteish connector that is loose at the moment? Its located at the above of passengers side kick panel. The wires that goes to that doesnt have any color it like see-thru.
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Old 01-09-2018, 04:29 PM
  #75  
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Answer to myself. Its a speaker related.
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Old 08-13-2018, 06:43 PM
  #76  
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Default Removable top trouble

Hello all. I'm new here. One of my roof release bolts is FIRMLY stuck in place. I've tried an EZ out without success. Desperately need help. Thanks!!
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Old 09-05-2018, 11:58 PM
  #77  
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A member posted this today, good video to add for removing door handles

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