w124 OM606 N/A Oil Pressure

[thatguy]

My 95 E300D oil pressure gauge likes to read 3 all the time, even at hot idle. I know this is a symptom of a faulty sender, but I am not getting 3 bars with just the key on, it only goes up after the engine is running. When I turn the key but keep the engine off it doesn't change at all, does this still sound like a bad sender? If so, where is it on this engine? It's kinda crowded down below the filter housing, is it still in that same location?

BTW my idle is about 700rpm so it's not a high idle problem. Oil is 15w40 dino Lubro Moly, fresh oil as of yesterday.

Thanks a ton, this car is kind of new territory to me, I've been a die-hard 617 guy for years though.