2004 f150 5.4 3v 130000 miles I just changed timing chain, tentioners , oil pump, water pump, coils and now I am pulling codes P0330, P0351, P0356, P2106 since the codes I have changed the spark plugs in cylinder s 1,5,6 swapped the coils on cylinder s 1 and 6 but no difference

 

Also replaced crankshaft position sensor and 1 camshaft positions sensor

 

you sure you got it timed up correct prior to install of the chains ??

 

It ran like brand new for one day after I changed the timing so I would think so but could be wrong

 

I have been to the mechanic three times now he found the valve cover on the drivers side the gasket was got pinched when I put it on he put new coils in cylinders 1 and 6 along with connectors he put on new throttle body and connector new coils boots on all coils because the old ones had swelled up and I am still getting codes P0320, P0351, P0356, P2106 . Picked it up today supposedly fixed got those code so for kicks did new fuel cap and fuel filter but nothing.

 

Problem fixed it was the crankshaft position sensor

 

good news....