5.7 will only idle when I pull the pcv valve out of the valve cover

No

Yes code po102 I erased code shut off engine restarted now code p1351

http://www.autocodes.com/p0102_chevrolet.html Copy and paste the link above, view entire page .. You may have induced PO1351 while manipulating various engine components .. Look very closely at the air intake tube from air cleaner assembly to the throttle body .. There can be NO leaks AT ALL in that tube, including all hoses that may be attached to the tube itself! .. IF you have no luck, suggest seeking qualified hands-on help... This is a pretty straight forward engine control system that's usually easy to repair .. Most experienced mechanics should not not have a problem with diagnosis using the required knowledge and testing equipment... (Vehicle presence IS required!) .. Good luck with it!