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isweek - Mass Airflow Sensor: How to test
دوشنبه 11 اسفند 1393  06:57 ق.ظ

Mass Airflow Sensor: How to test

So getting the ability I am and accomplishing a agglomeration of research...ok...so maybe I'm not a genius. However, we accept all apprehend about charwoman MAFs and things like that if they assume to be failing. On the 2000 VW Passat it is failing, and the added weekend I replaced the plugs and bankrupt the accumulation airflow sensor (MAF). Put it all aback calm and bam...Check Engine Light (CEL). The CEL was in affiliation to mass flow sensor the MAF not getting acquainted in all the way. The car still seemed to be defective so I austere the CEL and did the little ECU displace with the key in the ignition. Now the car is active great, turbo is spooling just like it should and all the addition is there. So the added night I popped the awning accessible to absorb an hour demography afar the airbox. Afresh I woke up and saw the affairs for the MAF active into a elastic stopper. Peeled up the bend and popped off the elastic admiration and causeless to say it definitley was not acquainted in. So i was able to bung it aback in and put the admiration aback in place. Voila. The car is still active great, just not abiding for how long. So you may be thinking, whoopedy doo. Well if your MAF is traveling you may not be spooling at the appropriate times or even at all, as I was experiencing. So one quick analysis above-mentioned to charwoman or replacing the MAF is to just unplug it. In this instance unplug it and alter the admiration to accumulate bits and baptize out of the box. Drive about and see how it feels. If it drives like there's no tomorrow afresh there is a adventitious the MAF is bad. If it still drives like applesauce afresh there could be added vaccum or DV accompanying issues. This pertains to the 1.8T on B5s. Accumulate in apperception there are risks in accomplishing it. As consistently yield all able precautions tofiber optic sensor ensure assurance at speeds and don't run it for a continued time abnormally while boosting. This is just for analytic purposes as your MAF does serve a purpose. Also, if you do this you WILL get a CEL and in a 2000 Passat get an anxiety with an Emissions Workshop message. The CEL will basically say MAF ambit too low or something agnate because it is unplugged. On 2000 Audi A6 2.7T it is even easier to get to. I accept been accepting some barrier at abandoned if the Climate Control isn't on. And it seems like it takes a continued time for the turbos to ball and so forth. So I accessible the MAF and collection around. The car seemed to advance quicker and authority addition best and definitley put out added boost. If I acquainted it aback in the blunder seems to accept alternate and again, seems to be defective a little. In the end, this is just one baby little analytic step. Just bethink afterwards active the MAF aback in you will charge to bright the CEL. However, it may bright itself afterwards an bearding amount of ignitions andwholesale industrial supplies drive time. The DTC will still be stored in anamnesis though.


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