Rough low idle : Mass airflow and misfire error codes - Toyota Yaris Forums

LeBnomiS · 05-08-2020, 05:24 PM

Well, after changing the plugs, the PCV valve, and cleaning the mass air sensor, I found the rattle to be the exhaust manifold heat shield, lol ! The bolts on the bottom practically turned to dust when I tried to tighten them. I'm going to try to tie it down with a hose clamp.

We'll see if the new plugs and the clean sensor will do the trick for the misfire problem.

05-08-2020, 05:24 PM	#4
LeBnomiS Drives: 2011 Yaris 3DHB Join Date: Aug 2014 Location: Canada Posts: 8	Well, after changing the plugs, the PCV valve, and cleaning the mass air sensor, I found the rattle to be the exhaust manifold heat shield, lol ! The bolts on the bottom practically turned to dust when I tried to tighten them. I'm going to try to tie it down with a hose clamp. We'll see if the new plugs and the clean sensor will do the trick for the misfire problem.