Are those REAL?!?!
dumb question... could this be a TPS problem?? ( doesn't know Broncos well enough to know if they even have one) but, that's exactly what the Mustang did when I out the intake back on after sending it up to Irwin PA to have it extrude honed. got to messing around and discovered the TPS didn't seat all the way, pushed it on till it "snapped" into place... and that was it... < shrug > Fireguy???