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

Oil Pressure

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Old May 9, 2009 | 08:27 PM
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John A. Marker's Avatar
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Default Oil Pressure

Which one of these is the oil pressure unit.....



Just replaced both units because of a bad oil leak (replaced both due to age and one is leaking). When I start the car, the gauge reads 0 oil pressure with a RED caution light. Could it be the one with the two electrical plugs....perhaps the plug that plugs into this is reversed.

Thanks
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Old May 9, 2009 | 09:49 PM
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The small one is a switch that feeds power to the fuel pump. The big one is oil pressure.
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Old May 9, 2009 | 10:47 PM
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make sure that there is no shipping plug stuck in the large unit.
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Old May 9, 2009 | 11:02 PM
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When all else fails..use the search. The 2 pin unit is the oil pressure switch to run the fuel pump per rodj in Australia 2008.

Tried to switch the plug, which you should not be able to do because the plug accepts a large electrical connector and a small...so it should go on only one way. But the actual electrical plugs on this unit are the same size ......and yes if you reverse it....it charges the fuel pump. The connector on the larger unit had come off.....need to replace the connector since the rubber is hard and will with great difficulty go over the plug.

Thanks for your replies....up and running again.
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