I have a 98 civic lx that has no reverse. It started having shift problems and when i tested the soleniods i found that they were going bad or were bad. I replaced them and ended up with no reverse. I replaced the top soleniod pack and it worked great but then it threw a code and it was soleniod b also D4 was flashing but i still had reverse. I then decided to replace the lower pack and the linear shift soleniod. Then i had no reverse. I replaced them again due to linear soleniod started leaking around the electrical plug thinking that was it but it wasnt. Any ideas on why i would lose reverse?