Question about 2000 Chevrolet Monte Carlo

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PO171 My 2000 Monte Carlo check engine light is on and it smokes when it is first started. The code is PO171. Could it be my K&N air fileter? How do I fix this problem?

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P0171 - Fuel Trim System Lean Bank 1
YOU WILL NEED TO AVE THE DEALER TEST THE O2 SENSOR FOR PROPER SWITCHING, RIGHT NOW IT SHOWS ALWAYS LEAN, THIS MAY BE THE SENSOR OR THE ENGINE MAY REALLY BE LEAN ON FUEL AIR RATIO, AS FAR AS THE SMOKE GOES THE 2 ARE PROBABLY NOT RELATED, HOW MANY MILES ON CAR? IF THE MILES ARE HIGH THEN REPLACE THE O2 SENSOR ON THE CYLINDER BANK WHERE # 1 CYLINDER IS LOCATED, THE SENSOR IS THE ONE BEFORE THE CATALYTIC CONVERTER.

Posted on May 08, 2009

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Posted on Jan 02, 2017

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2 Answers

My 2002 chevy monte carlo keeps cutting off while i'm driving whats wrong with it


Could be a dozen different things.
Is the check engine light on ?
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White smoke from exhaust in 1996 monte carlo


Head gasket failure or a crack in the cylinder head allowing engine coolant to enter the combudtion chamber, then out of the exhaust.

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I have a 96 monte carlo z34 it had a check engine light on a while back. We had it checked and I believe the code was P410 for the second air injection. We checked the fuse for the air pump and it was...


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1 Answer

1987 Monte Carlo


sounds like a heater core "antifreese" leak

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