The MAF sensor uses the air flowĢ00CC (392CF) above ambient temperature as measured by Shift and torque converterĭirectly in the airflow path between the air cleaner housingĮntering the intake manifold must pass through the sensor.ĭirectly in the airstream are two platinum wires, a hot wireĪ cold reference wire. This input can alsoĮlectronic Pressure Control (EPC). Powertrain Control Module (PCM) in calculating the required Measure s the amount of air flowing into the engine. Have someone with a live data reader read both sensors. When engine warms up (closed Loop) both sensors work together giving input to ecm for output. Use throttle bore foam cleaner it works like bathroom scrubbing bubbles and eats the gum and varnish. Regular cab cleaner is too harsh and can eat the coating inside mass air flow and it's delicate parts. There is a spray made for the mass called mas air flow cleaner. Yes, the Mass Air Flow is a Hot Wire type. I will wait for it to go before I fix that. Dealer also stated that Distributor bearing appears to be noisy and will need to be replaced sooner or later. Seems to work fine now but I will wait and see. Parts $33.00, Labor: $300 (about 3 hrs worth of work). Dealer replaced the "Crank Position Sensor" today. Had to have it towed to the dealer as there was no way the engine could keep up with traffic.
Instead, "Service Engine Soon" light came on. Bought water remover from the store and added to gas tank. At one point it did not even have enough HP to move. In my case, it ran fine for a while and then suddenly the engine starts to stumble and lose output. I had a problem on my Nissan Xterra 2000. have replaced ignition wires and distributor, checked mass air flow sensor and OK. SOURCE: 000 NISSAN Xterra - after warming up, loses RPM by 500-1000.
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