1999 Nissan Altima Repair Question
99: engine idles unevenly and vibrates.
I will appreciate any help on the MAP location and any other help to solve this. thanks
Please post the exact code numbers not code descriptions.That will make it a lot easier to help you.
the codes from OBD-2 scanner are p0120 - Throttle position sensor, p0105 - MAP circuit malfunction, p0443 - Evaporative Emission control system purge control valve circuit. I ve taken the car to my mechanic who said the MAP sensor is ok. But it still does that. I need to add that the car surges forward when changing from Gear 1 to 2. Thanks
So does your scan tool read live data?
I am not sure. But I ll check it. what should I look for?
See what the tps sensor reads while at idle?
While at Idle, the tps read 0%, while i accelarated with the gear position in park, the tps still read 0%. Intake MAP showed 1kPA. Thanks