174 system too lean bank 2 (drivers side)
374 is new to me! You must have a sohc v6 engine
374 is not supposed to happen on one of these trucks we do not have a ficm” (fuel injector control module)
Regardless it points to issue with crank sensor
349 camshaft position sensor circuit issue
On a 2000 sohc 4.0 the cam sensor is mounted in the drivers valve cover
How many miles on this truck and what have you tried so far?