Here is my first post and i hope someone can help me on this. First off, i have an engine shop where i rebuild engines and build custom racing engines. I`m working on a 2015 Ford F150 with a 3.5 ecoboost turbo V6. I`ve rebuilt the entire engine including all new camshafts from ford. Only one camshaft has a revision on it and is different from the original one. This is the right side exhaust cam. The 4 pin reluctor on the back side of the new cam is out 180 degrees compared to the old one. Nobody from Ford can answer this question if i`m going to have an issue with a check engine light from the cam sensor reading the pins correctly. To understand it better, if i lay both cams on the bench in front of me in the same position, for argument sake, the old cam has 3 pins at 11, 12, 1 o`clock position and 1 pin at 6 o`clock position. The new cam has 1 pin at 12 o`clock position and 3 at 5, 6, 7 o`clock position. All lobes are in the correct position, pin for the phaser is correct. Ford cant even tell me what the revisions are. They did say if there was an issue with the revised cam, there would be a bulletin about it. If i do get a check engine light, can the PCN be reprogrammed. Any help would be appreciated. Too many calls to Ford and the same answer i get from them is i don't know.