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Old 07-17-2012, 02:38 PM
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Stx221 Stx221 is offline
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Join Date: Jan 2012
Boat: 1995 Prostar 190, LT1 w/ Powerslot
Location: Maine
Posts: 189
Another thing to look into:
What does the oil pressure gauge look like when under way? Is it all over the place, or does it get up to about 30psi at idle and 55-60psi under load?
If it bounces all over the place, I recommend a new oil pressure sending unit. I know I was having a similar issue with the fuel pump power being cut on and off and it was due to the ECM "seeing" low oil pressure due to a faulty sending unit.
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