Hello all. I have a customer with a Kalmar P50BX PS S/N:585420A. I have a couple of issues I am trying to address. First- I have had a hit and miss problem where the machine doesn't accelerate, or when it does- it is erratic. We then go out, blow the dust off, shake and plug/ unplug the speed pot etc., and it works fine for a few days. It always seems to fix itself more or less anyway, but has gotten a little worse. I am here this AM, and I replaced the speed pot, located a defective PCV and replaced it, installed new plugs and cleaned and added die electric grease to the plug going to the cam and crank sensors. Of course it is running great now and may continue to. If it doesn't, what is next??
Second concern is the check engine light stays on. A couple of years ago I had the Komatsu dealer in New Orleans come up and pull a code/ repair. Several months later it came on again and has never gone out. Is there a "pedal dance" for this system to pull a code and clear one??
Thanks!