Engine accels without warning on 2002 Dodge Ram 2500

2002 Dodge diesel 2500 5.9L I6 Tempature guage goes up and down w/no warning, also engine revs out of control. CODES: p0577, p0118, p0123, p0343, p0606, p1286

by in Dayton, OH on January 10, 2012
2 answers
ANSWER by on January 10, 2012
We have had a few of these truck's come in with some of these codes, performed diagnostics and found the engine computer defective, computer on the engine, not the pcm.
ANSWER by on January 10, 2012
I have used a company in your area to test and repair those computers http://www.siaelec.com/