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Mass Air Flow Sensor #7853618 05/28/20 02:42 PM
Joined: Jul 2008
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Texas Dan Offline OP
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While these little gadgets seldom need cleaning, engine performance often improves greatly after cleaning one that needs it. My old pickup had developed an annoying ping on acceleration. Knowing I had done a tune-up just a few months ago, I thought perhaps the EGR valve was going bad. Then I discovered these newer Tacomas don't have an EGR valve. It finally hit me that it was probably time to remove and clean the Mass Air Flow Sensor. Just a few squirts of cleaner and the problem is gone. I also made it a point to clean the area where the sensor attaches to the air filter outlet so that it would get a good seal. It's my understanding that leaks in the air intake (to the engine) system can be like chasing a bad ground on trailer lights where you spend a lot of time trying to find the problem.

Last edited by Texas Dan; 05/28/20 02:47 PM.

"Some people will never like you because your spirit irritates their demons."
Re: Mass Air Flow Sensor [Re: Texas Dan] #7856028 05/31/20 12:19 AM
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Jimbo1 Online Content
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Good to know.


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