Compression Ignition Addict
Join Date: Apr 2012
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don't focus much on the p0603 code. i highly doubt it's relevant to your issue. are you running a tuner or chip on the truck?
as for viewing the parameters listed, it's not really involved at all. however, it is necessary of course to have a device capable of viewing them.
considering the amount of money that has been spent on the truck to fix a problem that has not yet been resolved, a device like this would have been money well spent from the get go.
typically, a device capable of reading manufacturer specific codes should be able to read these PIDs and perform a buzz test. try and see if you can borrow such a device from someone you know.
another thing you can try is removing both valve covers and running the engine. first, you want to see that all injectors are "oiling". that is, oil is spurting out of each injectors oil spouts. if you see one that is not, the injector is likely not firing. which could be an IDM issue. if they all are oiling, perform a power balance by disconnecting one injector at a time to see which cylinder has poor contribution. if a cylinder is found to have poor contribution and the injector is oiling and the valve train all appears to operating comparable to the others, i would run a compression test of that cylinder and compare it with one or two of the others
the richest ones are not those who have the most, but those who need the least