Mechanics

PCM P0171 & P0174 HISTORY CODES

2000 Cadillac Seville • 135,000 miles

I know these code are telling my car is running lean, but every I check my OBD, they come up "History". If I clear the codes, they light up my "check engine light". I read different threads about checking vacuum hoses, to be honest guys, there's so many different hoses under the hood, I don't know what's what. I read also, not to worry about it if it reads "history". Well, it keeps turning my light on and it's annoying. Any suggestions?
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Thunder
June 21, 2012.




That was cadieman that told you that.

Saturntech9
Oct 2, 2012.
(I didn't want to drop names)
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Tiny
Thunder
Oct 2, 2012.
I STAND CORRECTED BACK IN THE 70S THROUGH 00 IT ON THE FRONT SIDE. IM SORRY JUST SHOWS MY AGE.

Cadieman
Oct 3, 2012.
Just rechecked it for the hell of it front bank 1 3 5 7 rear bank 2 4 6 8. Saturntech9 can you get him a diagram pl.

Cadieman
Oct 3, 2012.

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