WTF is going on with my truck???

[stilltruckin]

My '02 is trowing codes like crazy! For the last couple of weeks I have been having trouble starting the truck, sometimes starts perfect other times will start then die, other times I have to cycle the key on and off to get rid of the SES light before trying to start. Below are the codes that came up over the last weekend while pulling my trailer to the lake and back. I cleared all codes prior to this trip. Any help or suggestions would be great.

Thanks

P0123 Throttle / Pedal Position Sensor / Switch A Circuit High Input
P0198 Engine Oil Temperature Sensor High Input
P0703 Torque Converter / Brake Switch B Circuit
P1662 EDU_EN Output Circuit
P0603 Internal Control Module Keep Alive Memory (KAM) Error
P0605 Internal Control Module Read Only Memory (ROM) Error
P1142 Fuel Restriction Condition
P0344 Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor)
P1282 Injector Control Pressure Higher Than Desired (engine running)
P1210 Injector Control Pressure Higher Than Desired (engine off)
P0236 Turbocharger Boost Sensor A Circuit Range / Performance
P1211 Injector Control Pressure Higher/Lower Than Desired (engine running)
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected
P0304 Cylinder 4 Misfire Detected
P0305 Cylinder 5 Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0308 Cylinder 8 Misfire Detected
P0503 Vehicle Speed Sensor A Intermittent / Erratic/High
P0640 Intake Air Heater Control Circuit
P1105 Dual Alternator Upper Fault
P0670 Glow Plug Module Control Circuit

[kblv247]

i would check main wiring harness's in engine bay. check all of the main connectors (the ones that use a 11mm bolt to hold them together) you may have some corrosion going on or maybe water. have you done any changes or maybe washed the engine lately??

[stilltruckin]

I installed my new F6 chip about three weeks ago, that's it. Should I try removing the chip, clear the codes and see what happens?

[kblv247]

when you installed that chip, dont you have to remove the main wirring harness goin through the firewall? if so check that connection make sure there are no bent pins, no water and that its good and tight. if that all checks out remove the chip so that its back to stock form and clear codes.

[stilltruckin]

yes, I had to remove the main harness, I checked everything upon reinstall. I will remove the chip and check the harness and see what happens.
Thanks.