93 T-Bird poor performance
My 3.8L is sick.Going to have codes checked this week: but having an excessive lean condition on all cylinders. Came on gradually and getting worse. Spark ping, surging. Fuel press. ok, cleaned throttle body recently, cleaned IAC ports, checked and cleaned EGR port, checked upper plentium bolts, no noticable air leaks. Leaning toward tps and O2 sensors, replaced 1 O2 2 years prior: after replacing head gaskets and reworking heads. DO NOT prefere to pay local dealer--onyone can throw parts at a problem I prefere a diagnosis first!