Question about 1996 Nissan Maxima

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Exhausted shooting out black smoke

I did a tune up on my 96 maxima one of the spark plugs had oil on it when just running it is fine but when you give it gas black smoke comes out i was wondering if i need to change the 02 sensors?

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Ok. Black smoke, mean fuel system too rich.
1 of the problem related come if the car is hard to start in the morning, If is the case, you need to check the coolant sensor and the harnes,
But if the car start normally in the morning or when the car is cool. You need to check for air leak in the intake.
check the hose from the air filter to the throthe bady for crack.
pinched. If evrything is OK. you need a MASS Air Flow Sensor.

Posted on Jul 01, 2008

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no year, ?

try a new spark plug e and then if wires to spark plug , replace that too. and cap and rotor if it has that....?????

then when spark is good, check compression with any $20 gauge.

no year, i give up.

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3: white and fades fast, is STEAM, like moms tea pot, look next time..

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Black Smoke Indicates Rich Air Fuel Mixture, Pointing at Serious Engine Performance Problem and , The NEED for Service VERY SOON. I would advise A MAJOR TUNE UP Consisting of
2 Spark Plugs
3 Spark Plug Wires
4 02 Sensors 2 If Aplicable
5 Fuel Injectors Cleaned
6 Oil Change

After This Service is Preformed It can EASILY be Determined if ther are any other EP Problems Of whitch Should be NoNe as This is A Major Tune up That Should Eliminate All Engine Performance Problems that Your Black Smoke would Point to AND Would Put your Engine in Shape For Optimum Fuel Millage Also. I Hope this Is Of Help To You And You Are able to Drive in Compfort and With No Worry As to The Condition Of your Camry
If you Feel I Have Helper You Sufently and Represented Properly Plaese Reflect this And Rate Me Fairly Thank you and Have a Great Day

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