Engine/Transmission (1998.5 - 2002) Oil pressure problem or idiot gauge?

[darkhorse]

My oil pressure gauge started acting goofy this afternoon after an oil change. About 5 miles after I'd changed the oil , the gauge needle went up to the tick mark above the 40 psi mark. It's very steady there regardless of engine speed. In fact, it now goes there when I turn on the switch even before I start the motor. I used my Smarty to check for codes. I got two. One for low oil pressure. I cleared that. The second was a P-1693 which won't clear. The motor seems to be operating like nothing has happened. Any one have insight into this kind of problem?

 

[NWhitney]

You did verify that you have oil right? Two sealing rings on the oil filter is not a good thing!! Dad's truck did the same thing and his oil press sender was bad, his did go to 0 psi but my guess is you had a reflash about the send, you may have asked for it or they may have just done it.

 

[DMcPherson]

the other code is probably a logged code on the ecm. that is why you can not clear it. I would assume for low oil pressure. you can test the sender, im not sure how, lol, but im sure you can find it online, and I would be willing to bet that it is bad. asuming the oil is full.

 

[darkhorse]

Yes I have oil. I did check for leaks at the filter & drain plug at the time of the change. The only reflash I've had is in the beta testing of the new Smarty. It did enable the 3 cylinder high idle which I had never had before, but I've been changing programs almost daily for a week & the problem only appeared this afternoon.