Rough running and idiling - Toyota Yaris Forums

seatech30 · 05-15-2019, 01:15 AM

Do you have an ODBII reader btw? On my AT, my idling in D was below 650, cleaning the TB helped bring it back up to 650ish. Unfortunately, it still dips under a bit and causes the vibration. I noticed any additional pull on current, A/C/fans, causes the rpm to dip and lead to more vibration. Maybe you can see if your sputtering coincides with rpms. I need to perform a compression test on the engine to see how that looks, but don't have the equipment, so may have to pay to get it done.

Also, have you done the fuel injector listening test? There's videos on youtube on how to do it.

05-15-2019, 01:15 AM	#8
seatech30 Drives: Yaris 2008 Sedan Join Date: Nov 2010 Location: California Posts: 85	Do you have an ODBII reader btw? On my AT, my idling in D was below 650, cleaning the TB helped bring it back up to 650ish. Unfortunately, it still dips under a bit and causes the vibration. I noticed any additional pull on current, A/C/fans, causes the rpm to dip and lead to more vibration. Maybe you can see if your sputtering coincides with rpms. I need to perform a compression test on the engine to see how that looks, but don't have the equipment, so may have to pay to get it done. Also, have you done the fuel injector listening test? There's videos on youtube on how to do it.