NorthshoreDawg
New member
I have a 2006 MB Sport 190+ with a 5.7L PCM engine. Bought used about six years ago with very low hours. Engine runs strong and is well maintained. The problem: At first intermittently, but now most of the time, I cannot get the engine to accelerate past idle. It starts like a champ and shifts into both forward and reverse just fine, but hit the gas to pull a skier out and absolutely no Schlitz.... It's idle forward or idle reverse only. The throttle linkage is confirmed hooked up at both the handle and TCP (Throttle Control Potentiometer?) sensor arm ends, and actuates normally. Also, cannot get the engine past idle with the neutral knob on the throttle quadrant pulled out.... HELP! My guesses are either: (1) The TCP Sensor (Part #R119004); and/or, (2) The Throttle Actuator Control (TAC) Module Assembly. Before I start throwing parts at this though, hoping to get some second opinions. Would appreciate any inputs. Thanks!