hey guys was wondering if any of you have ever had a p1233 code. i put in a KB BAP today and got this code. cleared the code and car has fuel pressure at 30 psi at idle and 40 psi while driving. I have heard of getting some kind of disk thats sits under the pressure sensor. any ideas. i have got a basic tune in it. need to get 500 miles on the new clutch before I can get it tuned.