ok i swapped a h23 into my ptrelude. i had another h23 in before and now when i start the car it idles all the way up to 3000 rpms and it just runs like garbage....i checked the vaccum diagram and its all plugged the right way....i adjusted the distributor to and thats not it...idk wtf to do. What else could it b and if it is a vaccum leak how could i diagnose it?>???????????