We have a 98 Contour with the L4, 2.0L; DOHC 16V engine. It has been giving a intermittent check engine light. My CarMD ID's the code as PO442 and says that Ford TSB 99-23-4 has the repair procedure to fix this error. We have already replaced the gas cap. I would like to get the TSB so that we can use its directions to repair the problem.