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2005 model, replaced oil sending sensor including cable, still same, run very well no check engine, temperature normal, pull out diagnostic codes and only got POWER TRAIN SYSTEM P0715 Turbine/Input Shaft Speed Sensor Circuit / Secondary DTCs P0154: O2 Circuit no Activity Detected (Bank 2, Sensor 1)
Note: Already purchase both input/output sensors, have not replace them yet... transmission no major issue maybe a bit change on auto shift but hard to notice...

Can anybody give la light on this, and if this has to do with the oil pump, I'm an IT Fiel Service Engineer have to drive long trips so far done like over 500 miles w/o any mechanical problem just the oil light blinking when idle at a a stop light or in park.
 

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Low oil pressure at hot idle generally indicates worn bearings.
Increased clearance lets the oil flow through more freely.
A worn oil pump is far less likely, it gets a steady diet of the cleanest, coolest oil from the pan.

Switching to a higher viscosity like xw-40 can improve the pressure and nurse a tired engine along.
You can drop the pan and inspect rod bearings to be certain.
 
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