1994 Nissan Maxima truble code

1994 NISSAN MAXIMA
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BENASETECH
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Engine Performance problem
1994 Nissan Maxima 6 cyl Front Wheel Drive Automatic

i have a 94 maxima the intermitently runs rough and sets the engine light. when i run the codes i get code 51 but i cant find this code on any list. any ideas?
Oct 16, 2008 at 12:06 PM
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ZACKMAN
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Code 51 - O2 sensor signal input indicates lean fuel/air ration condition during engine operation
Oct 19, 2008 at 10:08 PM
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