Hyster
S100FT
G004V02066E
LPG 4.3 engine
When the engine first starts it idles rough, will not accelerate, and will backfire through the intake. It will accelerate after about thirty seconds but very little power. It does not show any codes. We have already replaced the catalytic converter, spark plugs, cap, rotor, wires, and the O2 sensors. All cylinders have good compression. The lift has only 2070 hours. Any advise on possible cause? Thanks.
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