help needed, got a 91 civic hatch dx with d15 dpfi, we swapped the o2s and it still runs super lean with a bit of a funny idle, the af is 18:1. we swapped plugs its got a new dist and we also tried to adjust timing. not to familiar with the dpfi, but when we push on the tb blade that controls the bottom blade the top blade doesnt open up at the same time, this is when were trying to test it. any help will be appreciated.