P2074 - where do I start 3 mechanics had my truck can't find anything wrong

Question

2005 Dodge Ram 1500 2wd pcm wiring harness trans output seal and o2 sensors replaced at dealer truck has codes p0068 p2074

Answer 1

P2074  MAP ./ TPS correlation - High airflow / vacuum leak detected

P0068 Manifold pressure / throttle position correlation

What this engine has is a mechanical condition, The valve are creating the internal vacuum leak, The best tool to use to verify this condition is a ignition analyzer this would narrow down the offending cylinder.

​ The code condtion if the vacuum leak is not external , the vacuum leak would be internal of the engine , such as the cylinder valves