cp4 bypass issue
2014 F250 Deleted and tuned, Has been running great for 60K miles on tune. Decided to have cp4 bypass installed. The Mechanic used XDP kit. After install truck runs fine as long as you baby it. Stomp it and it throws P0087 low pressure at rail. Changed the filters, and also change the low pressure pump on the frame. Same result. Any suggestions?
2014 F250 Deleted and tuned, Has been running great for 60K miles on tune. Decided to have cp4 bypass installed. The Mechanic used XDP kit. After install truck runs fine as long as you baby it. Stomp it and it throws P0087 low pressure at rail. Changed the filters, and also change the low pressure pump on the frame. Same result. Any suggestions?
Last edited by Y2KW57; Sep 21, 2021 at 11:03 PM. Reason: corrected anomalous vb code error that software filter interpreted as spam, then approved post
the large one in the middle sometimes does not go in correctly and results in air being sucked in.
the oring with the star plastic holder does not have air being sucked in problems.










