Compression Ignition Addict
Join Date: Nov 2011
Location: The great state of Warshington
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P0603 - Internal control module KAM error
P0236 - Turbo boost sensor A circuit performance
P0500 - Vehicle Speed Sensor (VSS) Malfunction
P0235 - Isn't actually a DTC that a 7.3 should throw. Assuming the superchip is misenterpretting P0236 and coming up with this code.
First code: Have you had your batteries disconnected recently? Generally this code is stored when batteries are disconnected or have died. Fairly common code, and nothing to be concerned with.
Second code: This would be a MAP (boost) sensor issue. Check MAP line and sensor connections. If connections are good, replace MAP sensor with known good unit.
Third Code: Check the VSS located on rear pumpkin, as well as all wiring leading to sensor. If wiring and connection are good, remove sensor and inspect tone ring. Replace sensor if needed.
Correcting these three codes should solve all of your issues. VSS controls PCM's ability to shift correctly, and MAP sensor controls fueling which would cause low power.
Chrome don't get ya home