Vacuum - Toyota Yaris Forums

Yoda · 03-06-2011, 02:41 PM

What's your vacuum at idle? Just want to see what every one else has.

cali yaris · 03-06-2011, 02:43 PM

Hmmm, I'll have to check tomorrow.

Blown_xa · 03-06-2011, 03:51 PM

-21 inhg on a warm day

cdydjded · 03-06-2011, 05:17 PM

+/- 15-17. You do realize only people who are boosted will have a gauge to tell you this info. Im pretty sure very few if any who are not boosted run a vacuum guage.

cali yaris · 03-06-2011, 06:23 PM

^ Pretty sure that's why he posted in the Forced Induction forum.

Blown_xa · 03-06-2011, 07:04 PM

Quote:

Originally Posted by cali yaris

^ Pretty sure that's why he posted in the Forced Induction forum.

yup

cali yaris · 03-06-2011, 07:36 PM

-17

johnny_vitz · 03-07-2011, 07:20 AM

15-17 on start-up...20-21 once its warmed up

Yoda · 03-07-2011, 03:01 PM

Ok thanks I ordered a new boost gauge and just wanted to see what I should be expecting in vacuum. Previous gauge did not have that.

Blown_xa · 03-07-2011, 09:24 PM

some things which can affect vac reading at idle... electrical load, afr's, and aftermarket cams. a stock, healthy motor is about -20 inhg. If you see -17 warm with ac off and proper afr... do a leakdown test.

cali yaris · 03-07-2011, 11:18 PM

Quote:

If you see -17 warm with ac off and proper afr... do a leakdown test.

That's normal on my car.

Yoda · 03-08-2011, 11:44 AM

mine is about -23 inhg but still trying to figure out why my idle afr is soo lean. I am making a boost leak tester right now to see if i have a leak. And also my idle is rough bouncing all over the darn place 300-1000rpm.

Blown_xa · 03-08-2011, 07:13 PM

Quote:

Originally Posted by cali yaris

That's normal on my car.

strange, maybe your intake manifold has something to do with that. Last time I had vac that weak my piston ringland was cracked.

Blown_xa · 03-08-2011, 07:15 PM

Quote:

Originally Posted by Yoda

mine is about -23 inhg but still trying to figure out why my idle afr is soo lean. I am making a boost leak tester right now to see if i have a leak. And also my idle is rough bouncing all over the darn place 300-1000rpm.

sounds llike a flakey primary o2, or exhaust leak before it.

Yoda · 03-11-2011, 09:02 PM

need alittle help. Is there another spot i can tee into for my new BOV? I want it to have its own vacuum/boost source. I am currently running everything off the intake manifold.

pimp my yaris · 03-15-2011, 06:24 PM

I had the same problem with the lean, bouncing idle condition. Some times it would even die out. I think the 02 sensor gets much hotter when located so close to the turbo. Also with the o2 sensor connected it will always be fighting the FIC and trying to correct. Now I only tune with the o2s dissconnected. My idle is still a little lean but much smoother and no die outs.

cali yaris · 03-15-2011, 06:38 PM

I put in a vacuum block, it makes it easy and very secure for multiple boost/vacuum lines.

I thought Golden Eagle made them, but I can't find it on their site.

Here is one from Full-Race:

ilikerice · 03-16-2011, 08:45 AM

^^holy monkey balls.. didnt know they made those..

03-06-2011, 02:41 PM	#1
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Vacuum What's your vacuum at idle? Just want to see what every one else has.

03-06-2011, 02:43 PM	#2
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	Hmmm, I'll have to check tomorrow. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-06-2011, 03:51 PM	#3
Blown_xa Drives: Scion xA Join Date: Oct 2009 Location: Virginia Posts: 449	-21 inhg on a warm day __________________ Ptuning.com

03-06-2011, 06:23 PM	#5
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ Pretty sure that's why he posted in the Forced Induction forum. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-06-2011, 07:36 PM	#7
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	-17 __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-06-2011, 05:17 PM	#4
cdydjded Drives: Yaris LB Turbo Join Date: Aug 2006 Location: Miami FL Posts: 782	+/- 15-17. You do realize only people who are boosted will have a gauge to tell you this info. Im pretty sure very few if any who are not boosted run a vacuum guage.

03-07-2011, 07:20 AM	#8
johnny_vitz Drives: 2005 Toyota Echo Join Date: Sep 2010 Location: Hamilton, Canada Posts: 259	15-17 on start-up...20-21 once its warmed up __________________ 05' Echo Hatch - Greddy Supercharger - rear disc

03-07-2011, 03:01 PM	#9
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Ok thanks I ordered a new boost gauge and just wanted to see what I should be expecting in vacuum. Previous gauge did not have that.

03-07-2011, 09:24 PM	#10
Blown_xa Drives: Scion xA Join Date: Oct 2009 Location: Virginia Posts: 449	some things which can affect vac reading at idle... electrical load, afr's, and aftermarket cams. a stock, healthy motor is about -20 inhg. If you see -17 warm with ac off and proper afr... do a leakdown test. __________________ Ptuning.com

03-08-2011, 11:44 AM	#12
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	mine is about -23 inhg but still trying to figure out why my idle afr is soo lean. I am making a boost leak tester right now to see if i have a leak. And also my idle is rough bouncing all over the darn place 300-1000rpm.

03-11-2011, 09:02 PM	#15
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	need alittle help. Is there another spot i can tee into for my new BOV? I want it to have its own vacuum/boost source. I am currently running everything off the intake manifold.

03-15-2011, 06:24 PM	#16
pimp my yaris C'est la vie Drives: 2009 2 door hatchback Join Date: Aug 2009 Location: chicago Posts: 482	I had the same problem with the lean, bouncing idle condition. Some times it would even die out. I think the 02 sensor gets much hotter when located so close to the turbo. Also with the o2 sensor connected it will always be fighting the FIC and trying to correct. Now I only tune with the o2s dissconnected. My idle is still a little lean but much smoother and no die outs.

03-15-2011, 06:38 PM	#17
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	I put in a vacuum block, it makes it easy and very secure for multiple boost/vacuum lines. I thought Golden Eagle made them, but I can't find it on their site. Here is one from Full-Race: __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-16-2011, 08:45 AM	#18
ilikerice Drives: 2010 black yaris Join Date: Oct 2010 Location: savannah, ga Posts: 2,868	^^holy monkey balls.. didnt know they made those..

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