i have 99 dodge cummins i am running a edge comp box and my check engine light keeps coming on and my computer is saying that ihave to high voltage going to the map sensior and i will clear it and then it will come back on and it will say that it has to lojw voltage going to it? has any body else have tis problem.

 

I just had a similar problem. I lost all power. However I had codes p0237 and p0238. I replaced the map sensor and all seems to be well. I am running and edge ez.

 

I would check your connections for corrosion, cuts, anything like that. When I had my XZT+ the connections at the MAP got corroded and was throwing CEL. Cleaned up the terminals, put a little bit of electrical grease in there and all is well.