ok here is goes i don't know if this has anything to do with it but i have an obx intake manifold and latley i have had some problems with it and got it fixed and just recived my a/f gauge and hooked it up and it wondered from lean to rich and the just stayed at rich. the car wont idle below 1200 for some reason. which is a rough idle. the aren't any air leaks. what could be the problem. help