I have a Hyster S30FT E010 that wont start. It is an '07 that has the Mazda with the Spectrum EPR reg. Primary pressure changes every time I crank the engine and the range is between 3.5 to 17psi. The pressure will hold steady while cranking and wont change until I turn off the key and try to start again. Code 522598-4 is in the fault log but not on display. Anyone know what that code is?
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Thanks for everyone's help. Turned out that the EPR was bad. With a good one, the primary pressure stays at 3.5 psi all the time and never fluctuates.
Hey friend
You got my mail.
Couple helpful hints.
I do not have more
Did you check the diaphragm in the mixer for a tear? Usually this will cause a no start symptom and also a pressure fluctuation.
Does anyone have a service manual for this truck?
I must have turned the key on with the lockoff disconnected to cause the code. I had the lockoff off of the reg to test it and its OK.
Code indicates the lock off voltage is oorl. You may not be getting power to the lock-off solenoid.
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