C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

CALLING ALL "91'S"

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Old Jul 15, 2002 | 02:34 AM
  #1  
Mile High
Mile High "91"
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From: Lakewood CO
Default CALLING ALL "91'S"

Is there a way to get digital reading of oil temp. ,coolant temp. ,and volts where the milage is normaly displayed I have looked in manual and have found no reference to this operation. Someone told me that there should
be a button that says guages near the trip monitor switch any ideas??????
:confused: :confused: :confused: :confused: :confused: :confused:
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Old Jul 15, 2002 | 09:31 AM
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Default Re: CALLING ALL "91'S" (Mile High "91")

Is there a way to get digital reading of oil temp. ,coolant temp. ,and volts where the milage is normaly displayed I have looked in manual and have found no reference to this operation. Someone told me that there should
be a button that says guages near the trip monitor switch any ideas??????
:confused: :confused: :confused: :confused: :confused: :confused:
No it was not offered until 1992. I have a 1991 Dash and engine harness in my car and I wanted this as well.. the 1992 CCM controls the digital readouts you want to the Cluster, but the 1991 Cluster and 1992-newer clusters are different. even if you swapped in the 1992 cluster and CCM you would also need the 1992 ECM to get full operation. Currently I have not found a way to take the 1992 ECM and get it to control the 1991 L98 motor. once that is done then you could essentially get the digital readouts.
1992-1996 offered those extra readouts.. the 1990 and 1991 did not
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Old Jul 15, 2002 | 12:13 PM
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Mile High
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Default Re: CALLING ALL "91'S" (-=Jeff=-)

Thanks Jeff for clearing that up.
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Old Jul 15, 2002 | 12:30 PM
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Default Re: CALLING ALL "91'S" (Mile High "91")

No Problem :cheers:
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Old Jul 15, 2002 | 05:31 PM
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Default Re: CALLING ALL "91'S" (Mile High "91")

Try the following link:
http://www.idavette.net/tech/c4diag.htm

Works as advertised on my 1990! Should give you everything you asked for except the "oil temp". The readout will be on the HVAC display.

Parameter 5 is Voltage and Parameter 16 is Coolant Temperature in degrees C.


[Modified by Wildride, 3:35 PM 7/15/2002]
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