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Old 06-12-2019, 09:50 PM
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6.0 lq4 getting lean codes both banks

Hello Iíve been getting p0171 and p0174 leans both banks itís in my streetrod Iíve been getting these codes since Iíve gotten it running and new o2 sencers and new intake gasket no vacuum leaks that Iíve found and no exzaust leaks.

I just noticed today that I had the mass air flow sencer in backwards.
I only get the codes when the car idols warmed up

Would that cause my lean codes ?
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