I have a '85 300zx non-turbo that cuts out at 2300 rpm whether just revving in park or on the road. I replaced the Mass Air Flow Sensor and it ran fine for a day. Could have gone bad again? What would cause it to go bad. Is there something else that could cause the problem? i have the same type of problem witha 86 300zx turbo it cuts out at about 2300 rpm but only on the road not at a idle..?
If the car is a automatic then the connectors on the trans brain (located on the passenger side behind the spare tire) are getting wet. Try just wiggling them and see if it responds, if not unplug dry out and reassemble. Also fix where the water is coming in. I had this same prob and it drove me crazy.
How old is the fuel filter? and have you checked fuel press at idle and while driving ? and does the car have a cat on it ? you can get car at operating temp and check the temp of inlet and the out let is it over 100 degrees difference? and the mass air you put on is a new oem ?
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