Help!
My truck is defueling and the check engine light is on.
I had the guy scan it for me and it said low turbo boost input circuit. The code, I think is 0267 or 0237. I changed the IAT and MAP sensors, but no dice. Hope someone can help on this. Thanks!

 

Hello 72dart and welcome to the site. Sorry your first post has to be up here. It would be a good idea to fill in your Signature with the details of your truck so people who know the truck can chime in and help. I will assume a 24v.
P0237----Map Sensor Voltage Too Low---Map sensor voltage input below the minimum acceptable voltage.
This is saying the voltage coming back to the ECM is lower than it would be at no boost. I would check all the connections real good. Do you have an Edge or other box? If so make sure all the connections are good and tight I would disconnect and reconnect them. I would also check and make sure all my grounds are good and clean.
Hope this helps.