MY YARIS IS SLOW NOW????? - Page 3 - Toyota Yaris Forums

sqcomp · 03-08-2007, 02:09 PM

FYI, those non-foulers should only be $5-$10 for two of them.

ToTo · 03-08-2007, 03:27 PM

How about in the case of a high flow cat and sensors, one before the cat in the manifold and one after the cat, instead of in a straight pipe?

Dragonacc · 03-08-2007, 05:26 PM

Quote:

Originally Posted by sqcomp

Apparently since I'm a ZPI hater (not really) you might not want to try this little trick I learned from my SRT-4 days...

Toto- I believe I know why you're going to see a code if you just install on a straight pipe. Read on...

When I replaced my o2 pipe and my downpipe, we had two o2 sensors. One on the o2 pipe itself and one in the "cat" area. I decided to run a straight downpipe with a cutout. I understood that the computers would throw a code if the o2 sensors didn't detect a certain temperature difference between the two sensors. What I did was to buy a spark plug non-fouler, bore the inside out a little bit with a 1/2" drill bit. Why? Well, go ahead and try to screw in an o2 sensor to an 18mm non-fouler without boring the inside top out a little bit, you'll understand...the sensor just doesn't fit. When you take a bit of material out of it it will screw right on. After you bore that non-fouler out and fit it onto the o2 sensor, simply screw the non-fouler into the downstream sensor bung.

This backs the sensor off just enough to have it read a lower temperature like you'd have with a cat...like you're supposed to. It is my belief that when you look at a catalitic converter versus a straight pipe, you should notice that the o2 sensor dosn't go straight into the pipe's exaust stream as much as it would with a straight pipe. With my limited smarts on vehicle engines, I believe the temperature issue is why you'd see a code.

Now, I can find the how to for the SRT but it is really as simple as i've described it. I don't know the specific size of the stock o2 sensor on our Yaris. Sice I'm NOT going to be messing with the engine of mine...I leave this up to you guys.

On the old car, I NEVER threw a code with this little DIY mod in the year and a half I used it.

Thoughts?

This is exactly what I was talking about in my post. It's worked for me on several cars. I coined the term "Ghetto Sim" on thevboard for this mod.

sqcomp · 03-08-2007, 06:55 PM

Uh oh! This one might be for real! This is a super cheap way to "beat" the system. It's worth a try.

Galavoxx · 03-09-2007, 12:58 PM

Quote:

Originally Posted by CASTREX

So, any one thinks that could be possible to open the OEM muffler and take some guts out of it? I dunno how that muffler looks on the inside, but anyone thinks that this could be done? Improved flow and quite at the same time!

I've been thinking of trying this myself. I'll let you know how it goes. Probably wont get to it for about a month though.

CASTREX · 03-09-2007, 03:23 PM

Quote:

Originally Posted by Galavoxx

I've been thinking of trying this myself. I'll let you know how it goes. Probably wont get to it for about a month though.

Maybe one of the guys running the TRD's or one of the other aftermaket mufflers would be willing to open up theirs OEM so we can take a look and see if is worth it.

You could post it on the TRD muffler thread and see if anyone answers back.

Galavoxx · 03-09-2007, 03:58 PM

Quote:

Originally Posted by CASTREX

Maybe one of the guys running the TRD's or one of the other aftermaket mufflers would be willing to open up theirs OEM so we can take a look and see if is worth it.

You could post it on the TRD muffler thread and see if anyone answers back.

I already have the OEM muffler. I just need to get over to my buddy's house. He has the welding equipment.

ROCKLANDTOYOTA · 03-09-2007, 04:07 PM

Quote:

Originally Posted by Nimble

Right, guys like you...you know car salesman....typical douche bags.

if thats a crack on my job title i got news for you WRONG DEPARTMENT.......

CASTREX · 03-09-2007, 04:08 PM

Quote:

Originally Posted by Galavoxx

I already have the OEM muffler. I just need to get over to my buddy's house. He has the welding equipment.

Good...! make sure to take a lot of pics

Nimble · 03-09-2007, 04:42 PM

Quote:

Originally Posted by ROCKLANDTOYOTA

if thats a crack on my job title i got news for you WRONG DEPARTMENT.......

Right, you work for the ricer part sales dept, you know, based on your "mod" list.

ROCKLANDTOYOTA · 03-10-2007, 10:58 AM

i said this before in another thread and i'll say it again, EVERYTHING on my "MOD" list was cost or free so WHY NOT.....

WRLEO · 03-12-2007, 10:31 PM

Were working on a Header that actually makes power right now..
Be patient.. We should have them done very soon here.

KSIbucky · 03-12-2007, 10:36 PM

Quote:

Originally Posted by Nimble

NEWS FLASH!!! A Yaris is slow even with a header, pulley, intake, exhaust, lightweight oil filter cap, high performance windshield washer fluid tank, color matched badges, less than 1/2 a tank of gas, and you cutting your legs off to save weight.

don't forget mudflaps and power windows and doors i've by dorpping those in you get great hp

03-08-2007, 02:09 PM	#37
sqcomp Roadrunner Jr. View User's Garage Drives: 2007 Yaris S Join Date: Jan 2007 Location: Back at home Posts: 2,609	FYI, those non-foulers should only be $5-$10 for two of them. __________________ “To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine

03-08-2007, 03:27 PM	#38
ToTo Drives: Toyota Yaris T SPORT Join Date: Feb 2006 Location: Budapest, Hungary Posts: 110	How about in the case of a high flow cat and sensors, one before the cat in the manifold and one after the cat, instead of in a straight pipe? __________________

03-08-2007, 06:55 PM	#40
sqcomp Roadrunner Jr. View User's Garage Drives: 2007 Yaris S Join Date: Jan 2007 Location: Back at home Posts: 2,609	Uh oh! This one might be for real! This is a super cheap way to "beat" the system. It's worth a try. __________________ “To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine

03-10-2007, 10:58 AM	#47
ROCKLANDTOYOTA JOE GIRTH Drives: YARIS 3DOOR Join Date: Feb 2007 Location: ROCKLAND TOYOTA/SCION Posts: 369	i said this before in another thread and i'll say it again, EVERYTHING on my "MOD" list was cost or free so WHY NOT..... __________________ http://www.carid.com/toyota-accessories/ site has a FEW interesting yaris items.....

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
NEWS: TOYOTA REVEALS ALL-NEW YARIS SEDAN AT 2006 LOS ANGELES AUTO SHOW	VitzBoy	General Yaris / Vitz Discussion	7	09-20-2023 08:50 AM
2007 Yaris Pricing Info !	YarisBueller	New YARIS Purchase Forum	104	06-24-2009 05:54 PM
I test drove a Yaris, Versa and FIT	CanadaCraig	New YARIS Purchase Forum	41	11-29-2008 10:18 PM
My Yaris IS SLOW	David81	Performance Modifications	47	08-08-2006 03:34 PM

03-12-2007, 10:31 PM	#48
WRLEO Drives: Yaris Join Date: Nov 2006 Location: San Francisco Posts: 46	Were working on a Header that actually makes power right now.. Be patient.. We should have them done very soon here.