T800/CM2250 intermittent dead pedal/low rpm

[Rawze]

(06-04-2023 )Tberg Wrote:  I had a truck doing something like this but only on hard accelerations. Was sensor supply 5 wire rubbed thru on front structure. Would ground out but for only a second when engine would flex. Motor mounts were also shot. Your accel pedal sensor supply is also tied into your def tank.

supply for the throttle pedal May or may not be tied to the def tank on a given truck. Depends on engine and truck. many are however tied to the coolant and tail shaft speed sensor, etc.

but you do have a good point about rubbed thru wiring causing intermittent issues like this. Seen that a lot.

here is a similar post about TPS issues...
http://rawze.com/forums/showthread.php?t...1#pid12551

Someone can always go onto quickserv.com (sign up for free usually) and look it up in the engine ECM wiring diagram, hat supply voltages, etc. go to what engine/aftertreatment components.