I have a Hyster H50FT (L177) that is running rich/low power. Code 522630-2. When I monitor the oxygen sensor through the dash, the voltage remains high (.88V) at idle. The oxygen sensor does react as designed when using the accelerator. The unit has a 2.4L GM engine. I am wondering what the fuel pressure should be on this unit. It is a multiport system. Any thoughts anyone has would be great. This one has me stumped. Thanks
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