Idle Fluctuation due to aftermarket intake? - Page 3 - Toyota Yaris Forums

Captain Slow · 12-08-2011, 12:48 PM

except that it's annoying on a nice new(ish) car.

I took it out for lunch and noticed it doing the same thing, but this time it didn't get really low and vibrate the cabin. must have been the really cold weather this morning.

Reactor · 12-29-2011, 05:05 PM

I'm pretty sure this problem is caused by the MAF sensor sitting too close to the throttle body on the aftermarket intakes. At idle RPM it does not have the proper airflow through the sensor (it measures less air than it should).

syntax · 12-31-2011, 08:31 AM

would spraying with carb cleaner the intake of the TB just after the MAF would help?
may need someone to rev it up while spraying it

12-08-2011, 12:48 PM	#37
Captain Slow My Face Is Ridiculous View User's Garage Drives: 2010 Toyota Yaris 3dr LB Join Date: Dec 2011 Location: Scott, LA Posts: 456	except that it's annoying on a nice new(ish) car. I took it out for lunch and noticed it doing the same thing, but this time it didn't get really low and vibrate the cabin. must have been the really cold weather this morning. __________________ {Buy my book - It Came From Tomorrow}

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12-29-2011, 05:05 PM	#38
Reactor Drives: 1nz-fe Join Date: Apr 2009 Location: SoCal Posts: 4	I'm pretty sure this problem is caused by the MAF sensor sitting too close to the throttle body on the aftermarket intakes. At idle RPM it does not have the proper airflow through the sensor (it measures less air than it should).

12-31-2011, 08:31 AM	#39
syntax Drives: Yaris Sedan 2010 "shadow" Join Date: Mar 2010 Location: Riyadh,KSA Posts: 4,514	would spraying with carb cleaner the intake of the TB just after the MAF would help? may need someone to rev it up while spraying it