my 98 s10 has trouble code ps300?
first thing in the morning my 98 s10 with the 4.3 vortec V6 runs really funny like it has a dirty fuel filter. But only does it after it sits all night. I ran a diagnostics on it and it comes back random misfires in multiple cylinders. What could be the problem.
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Check out OBDcodes.com. It's free.
I don't know about any other parts stores, but I do know that Auto Zone can run a FREE diagnostic check if the "Check Engine" light is on. The can also give you a print out of possible causes and give you tips and advice on where to begin your repairs.
A faulty CPI unit