intake manifold leak due to rotten isolator bolts in the manifold plenum.
The fuel mixture is wrong in both banks. Improper fuel to air mixture is called lean. Running a code test on the vehicle may show what could be causing the problem.
yes
Two things that could cause the rig to lean to one side or the other could be:Broken shocks or springsUneven load
A vacuum leak can cause a lean burn.
Running too lean
system to lean bank one 02 sensor ?
No , but lean conditions can cause the misfire
Running too lean.
Trouble code P0171 means:System too lean (Bank 1)
Trouble code P0171 means:System too lean (Bank 1)
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
check the maf sensor