P0300, P0340, and P0128 codes

[2tex]

I have all three codes (random misfire, cam position sensor and temp) It runs very rough, especially at low rpms. I have replaced coil, plugs, wires, cps and check all vacum leaks.

The car runs rich when it starts. Low power and now smells burning but not overheating on temp gauge. It also seems to shift at weird rpms.

Could it maybe be something with the exhaust causing all three or is it possible for the timing to cause it?

 

[TRXSandRacer02]

it could be a timing concern. Possible that your engine timing is off. That engine (assuming it is a 2.3 since you only have a bank 1 cam correlation dtc) uses keyless camshafts and crankshaft sprockets. How is your engine maintenance? Oil changes every 3-5k? All your symptoms can be caused by slipped engine timing