Juss bought a 98 ram 1500 5.2l 5 speed yesterday..did tune up and all to it..recently before i bought it it was idling at 1300 rpm..bought a new iac, cleaned tb, new ait filter and i even sprayed carb cleaner around to check for a leak...and nothing..still idled at 1300..i took the driver side valve cover hose off and noticed it was suckin some mean air and i put a bolt in it and it went down to 800rpm and ran nice but immediatly went to 0 oil pressure and i shut truck off. So i took the bolt back out and ran it back to the airbox but idles high again...also thers no oil in the tb i looked. Any suggestions?