Yoda's Turbo Log - Page 10 - Toyota Yaris Forums

Yoda · 12-17-2010, 08:27 PM

Got ride of the too lean error code but now i got this....P2195 Does it mean my o2 sensor has gone bad? Need some input on this one

Focus_Sh1ft · 12-17-2010, 10:30 PM

Do you have a scangauge?

Is the car in closed loop during light acceleration?

Yoda · 12-18-2010, 01:17 AM

Nope I don't have one. How do I tell when it's in close loop

Focus_Sh1ft · 12-18-2010, 08:28 PM

I would definitely recommend getting a code reader that has some data logging abilities. In a situation like this, you need all the info you can get to diagnose the problem.

Is your wideband maintaining stoich for the most part?

Yoda · 12-18-2010, 08:44 PM

I think I have a vacuum leak somewhere in my hose. As for my wideband it idles at 15-15.6. Then randomly hits 16. Driving it ranges from the high 13s to high 14s under light cruise.

Focus_Sh1ft · 12-18-2010, 08:54 PM

Hm, that's definitely possible. When I was running closed loop I wouldn't see more than +- .5 AFR off stoich, so you have a pretty big fluctuation there. Still - that would mean you're running richer than normal, yet you have a code that says "O2 stuck lean."

cali yaris · 12-18-2010, 10:39 PM

Quote:

As for my wideband it idles at 15-15.6. Then randomly hits 16. Driving it ranges from the high 13s to high 14s

that's lean, not rich.

Yoda · 12-19-2010, 09:22 AM

Quote:

Originally Posted by cali yaris

that's lean, not rich.

I thought you wanted to run 14.7 under cruise I hit 13 sometimes. So I think that's alittle rich when there is no boost. What's your cruise A/F?

PETERPOOP · 12-19-2010, 12:17 PM

my cruise AFR is 14.6-15.1

Focus_Sh1ft · 12-19-2010, 12:32 PM

I have my cruise AFR tuned for 15-15.5 currently.

I'm going to suggest tuning in open loop, especially with your O2 going crazy as is. It's working well for pimp and I, and it's so easy.

Otherwise, you can continue troubleshooting the O2. I'd take the negative off the battery for a couple hours to reset the code since you don't have a code reader.

Yoda · 12-19-2010, 07:56 PM

Found the leak in the vacuum lines. Idle afr@ 14.2-14.6.

Bluevitz-rs · 12-19-2010, 11:03 PM

Quote:

Originally Posted by Yoda

Found the leak in the vacuum lines. Idle afr@ 14.2-14.6.

well, don't leave us hangin' like that, what was it? Operator error

cali yaris · 12-20-2010, 12:13 AM

^ there ya go, that's what you want

Yoda · 12-20-2010, 07:54 PM

Quote:

Originally Posted by Bluevitz-rs

well, don't leave us hangin' like that, what was it? Operator error

Wrong size vacuum hose.

Yoda · 12-21-2010, 07:28 PM

Got my injectors on and did a little fun drive. So my boost gauge showed I went all the way up to 11psi.....! WTF lol. And also there still must be a boost leak somewhere cause I was running lean at 5psi. Now I gotta find that leak sigh.

Yoda · 12-21-2010, 09:21 PM

I think the leak might be coming from the compressor inlet. I noticed the coupler not flushed and snug on there. I think that may be why it's still running lean when I get on it. All that unmetered air being compressed.

pimp my yaris · 12-23-2010, 04:27 PM

The wastegate actuator on that turbo does not even start to open until 10 psi. So 11 psi sounds about right. I allready went through most of these problems with my car. I had to add a additional spring straped to the W/G actuator and strut tower under the hood to open the wastegate sooner. It looks ghetto but it works. It now opens at 5 psi and maxed out at 8 psi at 6K rpm. I have some pics of spring on my thread. I also had to disconnect my o2 sensor and richen fuel across the entire rpm and load range with my piggy back to get it runing good.

Yoda · 12-23-2010, 06:01 PM

Well I got it all sortted out. Had a big leak by the inlet. Have it set at 7psi and to tell you the truth I thought it would be faster..... Maybe I need to really tune it up to get the most power out of it. What I was hoping for was neck snapping tq. Or that feeling you get as if some1 is pushing you into your seat. All in all its still worth it. Something I built myself and is different. Also order a new Bov. Greddy type RS ftw!!!

12-20-2010, 12:13 AM	#175
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ there ya go, that's what you want __________________ 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.

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12-17-2010, 08:27 PM	#163
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Got ride of the too lean error code but now i got this....P2195 Does it mean my o2 sensor has gone bad? Need some input on this one

12-17-2010, 10:30 PM	#164
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	Do you have a scangauge? Is the car in closed loop during light acceleration?

12-18-2010, 01:17 AM	#165
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Nope I don't have one. How do I tell when it's in close loop

12-18-2010, 08:28 PM	#166
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	I would definitely recommend getting a code reader that has some data logging abilities. In a situation like this, you need all the info you can get to diagnose the problem. Is your wideband maintaining stoich for the most part?

12-18-2010, 08:44 PM	#167
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	I think I have a vacuum leak somewhere in my hose. As for my wideband it idles at 15-15.6. Then randomly hits 16. Driving it ranges from the high 13s to high 14s under light cruise.

12-18-2010, 08:54 PM	#168
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	Hm, that's definitely possible. When I was running closed loop I wouldn't see more than +- .5 AFR off stoich, so you have a pretty big fluctuation there. Still - that would mean you're running richer than normal, yet you have a code that says "O2 stuck lean."

12-19-2010, 12:17 PM	#171
PETERPOOP View User's Garage Drives: 08 white liftback Join Date: Oct 2008 Location: Oahu Posts: 3,674	my cruise AFR is 14.6-15.1

12-19-2010, 12:32 PM	#172
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	I have my cruise AFR tuned for 15-15.5 currently. I'm going to suggest tuning in open loop, especially with your O2 going crazy as is. It's working well for pimp and I, and it's so easy. Otherwise, you can continue troubleshooting the O2. I'd take the negative off the battery for a couple hours to reset the code since you don't have a code reader.

12-19-2010, 07:56 PM	#173
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Found the leak in the vacuum lines. Idle afr@ 14.2-14.6.

12-21-2010, 07:28 PM	#177
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Got my injectors on and did a little fun drive. So my boost gauge showed I went all the way up to 11psi.....! WTF lol. And also there still must be a boost leak somewhere cause I was running lean at 5psi. Now I gotta find that leak sigh.

12-21-2010, 09:21 PM	#178
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	I think the leak might be coming from the compressor inlet. I noticed the coupler not flushed and snug on there. I think that may be why it's still running lean when I get on it. All that unmetered air being compressed.

12-23-2010, 04:27 PM	#179
pimp my yaris C'est la vie Drives: 2009 2 door hatchback Join Date: Aug 2009 Location: chicago Posts: 482	The wastegate actuator on that turbo does not even start to open until 10 psi. So 11 psi sounds about right. I allready went through most of these problems with my car. I had to add a additional spring straped to the W/G actuator and strut tower under the hood to open the wastegate sooner. It looks ghetto but it works. It now opens at 5 psi and maxed out at 8 psi at 6K rpm. I have some pics of spring on my thread. I also had to disconnect my o2 sensor and richen fuel across the entire rpm and load range with my piggy back to get it runing good.

12-23-2010, 06:01 PM	#180
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Well I got it all sortted out. Had a big leak by the inlet. Have it set at 7psi and to tell you the truth I thought it would be faster..... Maybe I need to really tune it up to get the most power out of it. What I was hoping for was neck snapping tq. Or that feeling you get as if some1 is pushing you into your seat. All in all its still worth it. Something I built myself and is different. Also order a new Bov. Greddy type RS ftw!!!