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Another easy thing to check that often rattle in cars of this age would be exhaust system heat shields, some of their mounting points tend to rust...
I had a vibration at the middle of the power range (1500 rpm) that went away after the egr system clean, I could not hear a rattle but it is...
Champ, Thanks! I found that the second sensor was connected however it has a short cable with a second connection that was hiding under the wire...
I am a new member of this forum and purchased my first Prius to use as a commuter vehicle, it is a 2010 Prius with 170000 mi, my first...