1996 5.7l vortec
Can anyone tell me why I get a DTC code of p1345 and p0108. I am in the middle of putting a 5.7l vortec out of a 96 suburban into my 71 landcruiser. I have alligned my distributor shaft (paint mark and drilled hole on the distributor gear making sure the rotor is not 180 out), alligned the end of the rotor with the notch in the base of the distibutor, and set my timing using a timing light to zero degrees. The motor runs great at an idle and seems not to miss at all. I take it for a test spin around my block and the codes P1345 and p0108 kick in and it runs poorly at higher rpm's. any help on the matter would be greatly appreciated.