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I am posting this for a fellow vette friend as he is "computer challenged". The car is a 94 LT1, with few bolt on mods, and 120,000+ miles. He is experiencing inconsistent oil pressure readings. They are never too low, but he says it sometimes pegs the gauge and stay there, especially cruising on the highway. Usually, at a stop light it will drop back down to a normal reading only to reach the peg again later.
Is this a bad sensor somewhere, bad gauge, or oil sending unit? Something else? TIA.