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LS2 TB Conversion

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Old May 28, 2007 | 02:49 PM
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Default LS2 TB Conversion

Hey guys I need some help here..My buddy and I are putting a LS2 based motor in his 2003 Z06..He has the 90mm TB and we need to figure our what wires to spice the new harness into..Can anyone help out with this?
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Old May 28, 2007 | 07:48 PM
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ttt...
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Old May 28, 2007 | 09:13 PM
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Get the Caspers conversion harness - 108115.
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Old May 29, 2007 | 08:15 AM
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Originally Posted by mitymikec
Hey guys I need some help here..My buddy and I are putting a LS2 based motor in his 2003 Z06..He has the 90mm TB and we need to figure our what wires to spice the new harness into..Can anyone help out with this?
PIN ID LS2 90mm
A.) ACT2
B.) ACT1
C.) +5v TPS Reference – Common to both TPS’s
D.) TP1 Signal 0-5v
E.) Common Ground
F.) TP2 Signal 5-0v

98-04 Wiring hookup
A.) ACT 2 - Brown
B.) ACT 1 - Yellow
C.) +5 TPS Dk Green/Wht
D.) TP1 Signal – Dark Blue
E.) TPS GND – Purple
F.) TP2 Signal – Pink
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Old May 29, 2007 | 10:24 AM
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Originally Posted by RoadRebel
PIN ID LS2 90mm
A.) ACT2
B.) ACT1
C.) +5v TPS Reference – Common to both TPS’s
D.) TP1 Signal 0-5v
E.) Common Ground
F.) TP2 Signal 5-0v

98-04 Wiring hookup
A.) ACT 2 - Brown
B.) ACT 1 - Yellow
C.) +5 TPS Dk Green/Wht
D.) TP1 Signal – Dark Blue
E.) TPS GND – Purple
F.) TP2 Signal – Pink
Thanks for the info...
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Old Jun 4, 2007 | 05:40 PM
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Originally Posted by RoadRebel
PIN ID LS2 90mm
A.) ACT2
B.) ACT1
C.) +5v TPS Reference – Common to both TPS’s
D.) TP1 Signal 0-5v
E.) Common Ground
F.) TP2 Signal 5-0v

98-04 Wiring hookup
A.) ACT 2 - Brown
B.) ACT 1 - Yellow
C.) +5 TPS Dk Green/Wht
D.) TP1 Signal – Dark Blue
E.) TPS GND – Purple
F.) TP2 Signal – Pink
I have a 1999 Corvette C5 LS1, with wiring as stated above (the 98 - 04) for the connection on the throttlebody position feedback connection, however the LS1 throttlebody have a separate connector with + and - to the throttlebody motor, where do I connect those wires to the LS2 90 mm throttlebody??? C and E?

Stupid question but am a bit confused...
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Old Jun 5, 2007 | 01:31 PM
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MITYMIKEC HOPE YOUR SORTED

C5 SWEDEN WHAT COLOUR ARE THOSE TWO WIRES??
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Old Jun 5, 2007 | 06:26 PM
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If you are stuck, call me I can pickup a harness from racetronix
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Old Jun 5, 2007 | 06:29 PM
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thanks guys..I got the harness from racetronix..thanks for help..
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Old Jun 6, 2007 | 04:46 AM
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Originally Posted by NITRO UK

C5 SWEDEN WHAT COLOUR ARE THOSE TWO WIRES??
Thanx Nitro_UK but I sorted it out!

//Tommy
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