Hi guys new here, hows it going? So i have a 98 camaro ss i do have a lean code p0171. Just checking everything out to narrow it down. Though im more familiar with lt1s, not so much with my ls yet. What is the average kpa idle reading for map on ls1. Mine was idleing around 33kpa off the laptop and innova scanner. Also if someone could tell me what other average readings are for MAF, and o2s. Just checked my fuel pressure as well. Its 50psi with key on, about 60psi running. The car runs good just kinda thought something was off and then it threw that code. Thanks guys. Car starts right up no hesitation.