Nissan Repair: 1995 NISSAN MAXIMA, mass airflow sensor, nissan maxima

Question
I'M WORKING ON A 95 MAXIMA V-6 WHEN ITS COLD IT RUNS FINE BUT AFTER IT WARMS UP IT HAS HARDLY ANY POWER ON THE LOW END AND SEEMS TO PICK UP A MISS. THE PLUGS ARE NEW AND THE OLD ONES LOOKED LIKE THEY WERE BURNING GOOD AFTER 3500 RPM IT RUNS GOOD IT SMOOTHES OUT AND HAS GOOD POWER

Answer
John,

I would check the fuel pressure since the vehicle runs rich when cold and then it leans out after the car reaches temperature.  Other causes could be the mass airflow sensor and or the coils.  Get a Haynes Manual and use the instructions to test the itmes mentioned.  Also, you will need a volt/ohm meter.