lean left and right bank code need help

[whiteponypower]

ok got a lean left bank o2 and lean right bank o2 tried to check for intake or vacum leaks using carb cleaner around the intake system to see if the motor revved up any and it stayed the same rpm my question is i have heard that the maf sensor can cause these codes and lack of fuel anyway what should I look for?

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[rafacalz]

Might be the MAF. What were the codes that you got

[whiteponypower]

po174 and the one for the other bank i think that was a p0176 i cant remember but it was deffintily both banks lean

[cliffyk]

Possible causes...