Hello everybody, I have a combilift on my hands that has a gm 3.0l lpg powered engine in it. It is electronically controlled (crank, tps etc). I know hysters use these engines as well and the combilift section here wasn t any help. Recently we have replaced the throttle cable, dist cap, rotor, wire set, spark plugs, ignition module, coil, and crank sensor. The unit idles fine and throttle works fine when the unit is stationary but while driving the throttle feels like its sometimes limited to 50% and then the forklift stalls. It always restarts fine. Its getting expensive throwing parts at it. Right now I am leaning towards the TPS but I have never seen these cause stalling. Any ideas and or literature would be greatly appreciated. I have manuals and wiring diagrams for the older 3.0l's but nothing for these newer ones. I hope one of you Hyster techs can help me. Any literature can be sent to me at loewen12 at Hotmail dot com. Thanks in advance.