Hey I have a 2008 Silverado ltz Vortec Max with a 6.0L....I just replaced the lifters, cam, rockers, push rods, etc...I got everything back together, it's running great so far, but I was double checking everything and I saw a connector behind the intake and it's not the oil pressure sensor, that's plugged in and I can't feel or see anything....it's driving me nuts, no lights on yet...ran it for an hour....what's the connector go to? Any ideas?