DIY: How to Test a Subaru Knock Sensor скачать в хорошем качестве

DIY: How to Test a Subaru Knock Sensor

Video tutorial on how to diagnose a faulty knock sensor on a Subaru. A faulty knock sensor will typically cause poor fuel mileage, decrease in power, flat spots in the throttle, throttle hesitation, and hard starting. It is important to test the knock sensor first as they can be fairly costly to replace. This particular video was done on a 1999 Subaru Forester with a 2.5L 4 cylinder. Website: http://4diyers.com Facebook:   / 4diyers   Google Plus: https://plus.google.com/+4DIYers Twitter:   / 4diyers   Instagram:   / 4diyers   Tumblr:   / 4diyers   Pintrest:   / 4diyers   How to remove/replace the knock sensor:    • DIY: Subaru Knock Sensor Replacement   Tools/Supplies Needed: -multimeter -12mm 3/8" driver socket -3/8" drive 3" and 6" extension -3/8" ratchet -torque wrench Procedure: -first check for any breaks or corroded wiring/plug connections -you can do a continuity test to determine if there is a fault wire within the circuit -check for a clean ground connection between the sensor on the engine block -check for any cracks in the casing of the sensor which would make it susceptible to moisture -disconnect the wire -using an multimeter, set it to the voltage setting, testing the harness on the ecu/vehicle side -ensure there is an approximate 5V reading when the key is in the on position -removing the sensor, using a 12mm socket, along with a 3" and 6" extension, you can access the bolt easily -using a multimeter in the ohm setting to testing the sensor -it should have a reading of 400,000ohm (400k ohm) or more which will determine that the sensor is still good -ensure that the sensor is install in the proper position which is 60 degrees in accordance with the rear of the engine -if the sensor does fail at any of the tests above, then it will need to be replaced -reinstall the bold and tighten it to 24nm or 17.4ft lbs -reinstall the wiring harness ensuring it isn't rubbing on anything Thank you to all those who watch my videos and support my content. Don't forget to subscribe to my channel for future tutorial videos and like my video if you found it helpful. New videos are always being uploaded every week! © 4DIYers 2013 All Rights Reserved No part of this video or any of its contents may be reproduced, copied, modified or adapted, without the prior written consent of the author.