Miscellaneous comments - PIN 6 is SRS so it's a safe bet those are unrelated - I would just clear them and forget about them for now. The PIN 14, #2 code you've picked up is for a car with ASR. Do you in fact have ASR? The brake lamp switch is only about $15 - if it's original it may not be a bad idea to replace it anyway. It does sound engine/throttle actuator related but it's too soon to panic.