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Help with gauges on lt1 to ls1 swap

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Old Apr 20, 2008 | 03:21 PM
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Default Help with gauges on lt1 to ls1 swap

Ok I got the car running great. My only problems now are 2 gauges arent working. My oil pressure isnt working and neither is my temp gauge. Anyone know where I might have messed up ? Thanks in advance!
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Old Apr 20, 2008 | 06:32 PM
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Well what year harness did you use, you will need a 98 ect sensor and run a extra wire inside to the connectors on the right side kick panels, both the coolant & oil pressure wires connect there and it is either the 220 or 230 connector, do you have a diagram of these connectors?, let me know if not I can get one tomorrow, thanks jason
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Old Apr 20, 2008 | 07:08 PM
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Yea i have a 2000 motor and harness and its all there.
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Old Apr 20, 2008 | 07:12 PM
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Well you will need a 98 ect sensor and run the extra wire inside to the connectors on the right side, I will lookup exact pinout tomorrow and let you know
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Old Apr 20, 2008 | 07:25 PM
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Ok thanks man!
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Old Apr 21, 2008 | 09:24 AM
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To the top
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Old Apr 21, 2008 | 10:31 AM
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Please post up this info b/c I am having the same exact issue. Maybe my OP sending unit isnt messed up, LOL.
and my coolant gauge will swing at times from one extreme to another.....
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Old Apr 21, 2008 | 10:54 AM
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ok on the white 220 connector pin B oil pressure to cluster,
pin k coolant feed to cluster , car side, engineharness coming in is pin A 220 connector, so i would move the pin from A to B in the engine harness & run the extra wire to coolant sensor , let me know if you need more help
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Old Apr 21, 2008 | 11:43 AM
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Ok I will give that a shot. Thanks again! Why do I need a 98 ect?
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Old Apr 21, 2008 | 11:44 AM
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Shon!! You got your running Congrats man
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Old Apr 21, 2008 | 12:00 PM
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Originally Posted by 95GreenZ28
Shon!! You got your running Congrats man
YEP, and it was loaded up to go testing on Sunday but track F-ed us, make up date for a 10.5 race....we will try again later...
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Old Apr 21, 2008 | 12:03 PM
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Damn that sucks! Hey I posted pics of mine up in appearance. You should check em out
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Old Apr 21, 2008 | 01:08 PM
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99 and up ect are serial data to the cluster, 98 ect will make your gauge work it has 3 wires, you will need connector also, green wire pin C goes to the gauge
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Old Apr 21, 2008 | 01:10 PM
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I guess I am not understanding how I install it or where to get it from. Is it just a plug in connector or what
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Old Apr 21, 2008 | 01:29 PM
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it is my understanding we need:

Temp sensor that goes in the head

Connector needed

Granted I do not think the pix shown are the exact parts needed since it only shows 2 prongs.

After all this, I should just buy an Autometer gauge, it would be more accurate, the sensor is $21 and the connector is $15ish (and that is if the local has it....) and i know exactly how to wire that up....
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Old Apr 21, 2008 | 01:34 PM
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I already have the sensor in my driver side head and it is hooked up through my ls1 harness. All I need to do is connect it in the cab i guess? Where I have no idea though
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Old Apr 21, 2008 | 03:08 PM
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Originally Posted by 95GreenZ28
I already have the sensor in my driver side head and it is hooked up through my ls1 harness. All I need to do is connect it in the cab i guess? Where I have no idea though
you have a 98 with 3 prongs?
that extra wire is what goes into the car (green wire pin C goes to the gauge)
IF I am reading this right....
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Old Apr 21, 2008 | 03:33 PM
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the pics aren't accurate, if you have the 98 three prong just find your wire coming from there and hook it up to pin K, should work
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Old Apr 21, 2008 | 07:14 PM
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I have a 2 prong on my sensor going into the head
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Old Apr 22, 2008 | 07:22 AM
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you need a 3 prong 98 ect & connector
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