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1986 trooper turbo diesel.
My chilton's doesn't have the wiring diagram for the oil pressure sending unit. Does any one have one (or can draw one)?
I bought this jewel over a year ago. The oil pressure gauge is always pegged at over 100 PSI, even when ignition is on and engine is off. The warning light has never come on that i know of. The two sensors appear to be wired in series, which doesn't make sense to me. I am not sure if it is grounded well. Any suggestions?
 
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