Question about 1987 Dodge Ram 50

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Carb. Hi I have a 1987 Dodge Ram 50 with 96,000 miles, I bought it from a guy in florida for $400.00 and I can't get it through emisions. They say I have too much oxyegan they cant even get a reading because when you start it up it runs for about 4 minutes then shuts off. I just bought a book and I am thinking of tearing the carb apart check out everthing to the specs and put it back together. My wife thinks I bought a lemon I bid to differ, please help. Michael from ct

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Well if it has too much oxygen it would suggest incomplete burn either through too little fuel or ignition timing too far retarded.

Are you sure they are failing on the basis of too much oxygen? Normally it would be too much CO and hydrocarbons, which is generally a result of rich mixtures and/or ignition timing.. When you ****** the timing you decrease hydrocarbons, decrease Nox and increase CO. When you advance you do the opposite. When you lean the fuel you decrease CO and decrease hydrocarbons and vice versa. When you raise compression you increase Nox.

Posted on Nov 02, 2008

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