4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

lean left and right bank code need help

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Old 11-07-2009, 08:45 PM
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whiteponypower
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Default lean left and right bank code need help

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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Old 11-07-2009, 11:34 PM
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rafacalz
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Might be the MAF. What were the codes that you got
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Old 11-08-2009, 07:52 AM
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whiteponypower
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po174 and the one for the other bank i think that was a p0176 i cant remember but it was deffintily both banks lean
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Old 11-08-2009, 09:32 AM
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cliffyk
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Possible causes...
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