Need HELP. Bogging WOT
p0131 and p0171 which i think is lean bank 1 sensor 1. Ive replaced the o2 sensor like 3 times and the code still keeps coming back?
Ive taken it too my tuner and he said to check the fuel pump. But it shows normal. And ive always replaced the fuel filter no more than 10000 miles ago. The car has 120k on same plugs? Is it time for new plugs or something else. Anyone else have problems like this
The car only has just a tune, true duals, intake and gears.
-ANY help would be greatly appreciated!
Oh and ive replaced the MAF with another used one my buddy had. And seafoamed the car also.
in stock cars the clogged cat could do it, or a plugged injector, lean
means not enough fuel usually, but another thing is next to the throrttle body the pcv hose usually rips check that, and while you check that check all the pcv system to the valve covers for additional air leaks,
air leaks after the maf will set the codes..
check that then come back,


