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2000 Expedition 5.4 L runs like junk
Disconnected the battery and tested: #5,6,7 and#1 coils both primary and secondary side,also tested the same injectors and pulled plugs(the only ones that were easy to get at) Next I tested: maf sensor,camsensor,tps unit, egr and controller, intake air temp sensor, head temp sensor,crank sensor. All tests were done according to Haynes manual, reconnected the battery and tested all sensors listed for incoming PCM voltage with Key on. All tests came back OK according to Haynes.
Unfortunatly disconnecting the battery has erased the codes and I cannot/don't want to drive the truck to trip the DTC's again for fear of causing more damage. I have idled it and no lights come on, but the truck is running WAY rich, it burns your eyes from 10 feet away.
I am wondering if the knock sensors could cause this problem? Any help???