P0237 - knocking & popping grey smoke

Question

Pulli ng the horse trailer and al of a sudden it went to knocking really bad! And like a metal ting noise by the turbo. It has a dead pedal 0 boost. I don't understand, checked the wiring checked everything I could. He says it's th e turbo, but the forums I've read also say it could be a map sensor, fuel injection, blew the engine.. buddy says the turbo blew and sent a piece of metal thru the map sensor back into the engine. A reply back would be awesome we are stuck on the side of the road with three horses 1 dog.

Answer 1

P0237 MAP sensor voltage too low

The MAP sensor location is on the top of the intake manifold.It provides a input voltage indicating turbo boost pressure. . If the turbo is not functional the MAP codes up. Here the big issue about this code issue the engine will have a limit off idle speed limit.There would be acceleration. You obviously have low turbo boost pressure. If the turbo went out you would find peices in the tubes. Check the tubing for the turbo and the intake make sure they are all intact.Do a visual check see if any of the tube pop out of place and make sure the oil level is full