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Saratoga II TC Oil Pressure Gauge & DDMP

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Joined
Aug 6, 2018
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Location
New York
(I'm crossposting this from Maintenance forum because I only got 1 person's feedback in that forum, so I want to try here hoping for others with similar problems, and more importantly, a solution.)

My 2001 Saratoga II TC oil pressure gauge reads low, if it reads at all, or the needle on the gauge slams down to 0 and slowly climbs back up. Also the DDMP more often than not shows - - - - for OP and alarms at me every 30-60 minutes or so. We put a wet gauge on the oil feed line to the transducer and ran the engine and I'm getting strong consistent oil pressure in the engine, so that's not a problem. The way I read the wiring diagram, the OP transducer is wired to the OP gauge, and the OP gauge sends the signal to the DDMP.

Replaced the OP transducer, but the problem persists.

Is it a busted gauge? Is there something else electrical I should be looking at?

Also, possibly related, while all the other gauges are reading correctly and consistently, and the DDMP for those values are all reading what the gauges are reading, the little green lights at the top of each gauge will flash off then back on randomly. Anyone with any idea what that's about?

See attached images.

Hope someone can help.

-Jason.
 

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