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Engine swap question

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Old Dec 3, 2016 | 07:17 PM
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Default Engine swap question

For those who swapped an LS motor into their c4, did all the gauges in the dash still work?


Mike, 1989 with auto transmission
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Old Dec 4, 2016 | 08:23 PM
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I did a swap in a 86 and the gauges were controlled by the sensors and not the computer. I ran dual sensors for the car temp gauges, and LS standalone computer. The LS computer controlled the fan si it needed the coolant temp.
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Old Dec 4, 2016 | 08:57 PM
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Originally Posted by RichS
I did a swap in a 86 and the gauges were controlled by the sensors and not the computer. I ran dual sensors for the car temp gauges, and LS standalone computer. The LS computer controlled the fan si it needed the coolant temp.
thanks. What about the information center indicater warning lights?
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Old Dec 4, 2016 | 09:42 PM
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MPG reading is lost. The car also lost the abs function since the factory computer was disconnected. Connected the check engine light to the LS computer so that worked still, as well as the other warning lights. I put the OBD 2 connector in place of the OBD1 one so normal scanner hook up.
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Old Dec 5, 2016 | 03:42 PM
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Yes, all but MPG.

Retained original computer. Adapters needed for tach & speedometer.
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