Eugene Torkelson
Member
2001 Peterbilt 357 cab N14 Cummins Allison Transmission. Check engine light on and lost cruise. Trans code 6600. Peterbilt plug-in under dash says throttle position abnormaly high. Any ideas? We have traced wiring but not sure if we are on the right track. We replaced the TPS (on the foot throttle) but nothing changed.