Vibration on acceleration at 50 mph

Get all four wheels re-balanced.

Vibration only occurring at highway/freeway speeds is typically due to wheels being out of balance. There may be other causes for this, but unbalanced wheels is suspect #1.

 

Here is the workup for P0117 (P0115 and P0118) : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/2054m/cip0115.pdf

Here is the workup for P0138 (P0136 and P0137) : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/2054m/cip0136.pdf

Here is the workup for P0606 (P0604, P0607 and P0657) : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/2054m/cip0604.pdf

 

Your codes have been addressed. As to "developed a vibration only with acceleration over 50 miles an hour", is that engine vibration or chassis?

 

The codes, check the 12v, when it's about ded weird stuff happens.
The vibration, a tire with it's belts separating, a big chunk of mud on a rim, a bent wheel, take it to have the wheels balanced after trickle charging it overnight at 2 amps.

 

"IF" it's chassis vibration...on a car with 250K miles...the list is very long.