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Spare oil pressure gauge

MRGT

MRGT

New member

Does anyone have a spare working oil pressure gauge for an oval dash 944 I can borrow as mine is showing the infamous 'key in ignition- shoot up to 5+' syndrome.
I know its not the sender (tried a known working one) so before I start tearing the wiring apart I want to make sure its not the gauge itself.

I will happily pay P+P costs.

Howard
 
if it reads full pressure on the scale all the time the ignition is on ,.........it either means you have an open circuit or a short . Can't remember which now[:(]
Have you used a multimeter on the sensor yet

Ok just googled. ...Full indicates that you have a short to earth somewhere
 

It was working fine up until a couple of months ago, so when it stopped working properly I assumed it was the sender, but that doesn't seem to be the case [&o]

Howard
 
If it drops back when the ignition isn't on, then it is kind of working isn't it?

I seem to recall the routing of the wire to the oil pressure sender is behind the belt guide, over the top of the water pump. I have seen one previously "cooked" engine where the insulation had melted, and it is in a prime position to be abraided, jammed underneath the oil filter, or otherwise damaged. It might be worth seeing if simply wiggling this wire makes a difference... otherwise, I'll throw in the suggestion of disconnecting the engine loom, then turning the ignition on... but... I'm throwing that in as a possible test, and would say I would think carefully about whether this could potentially damage any other components first.
 
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