New Scangauge owner questions - Toyota Yaris Forums

schleppy · 05-25-2009, 05:40 PM

I tried searching the forum already, but I haven't found any answers. I apologize if I missed them. So far the only configuration I've done on the SGII is change the engine size to 1.5L.

1.) The TPS readout never seems to go below 14, and at wide open throttle reads 80. Is this normal?

2.) Shouldn't the iMPG register 9999 (DFCO) a second after I take my foot off the gas entirely? It only seems to do it when I'm driving around town. On the highway it jumps into the 140mpg range when I take my foot off the gas.

Thanks MPGers!

supmet · 05-25-2009, 07:47 PM

2) DFCO requires the engine to be at a certain RPM to activate, so just taking your foot off the gas doesn't guarantee DFCO.

schleppy · 05-25-2009, 07:50 PM

Ahh, I see. Thank you!

Anyone have answer for #1?

m911gt · 05-25-2009, 08:04 PM

I believe the throttle body is limited to around 80% open for WOT on the yaris. One benefit of upgrading to the Matrix/Corolla throttle body is that it is a larger opening to begin with so 80% is actually allowing more air than the stock TB.

PreciousPups4U · 05-25-2009, 08:18 PM

When I set up my scangauge I seem to recall having to set engine size to 1.5, gas tank size to 11.1 and TPS to 21 (this might fix your problem). I seem to recall reading the TPS setting thing on here somewhere, maybe from Bailout.

Someone please post if I have the numbers wrong or if there is something else that needs to be set up initially.

BLH · 05-26-2009, 04:33 PM

#1. Mine says 14 or 15 with no pressure on the accelerator.

schleppy · 05-26-2009, 04:38 PM

Where do you set the TPS?

PreciousPups4U · 05-26-2009, 05:28 PM

Quote:

Originally Posted by schleppy

Where do you set the TPS?

It is in the setup somewhere. It's been so long I don't remember, but it is in the instructions.

talnlnky · 05-27-2009, 08:18 PM

To me 15-80 seems to be the TPS range... sometimes it'll go to 14, 13 is the lowest i've ever seen, but generally 15-17 is what I see.

DFCO doesn't appear for a prolly 1-1.5 seconds after I take foot off pedal for me... seems to be a lag in the SG. ALso... DFCO kicks in much quicker when the engine is warm... I've noticed it doesn't like to go into DFCO when the engine is say... 90F or lower.

BLH · 05-28-2009, 04:45 PM

Page 16 of my manual.
MORE>SETUP>FUEL>CUTOFF

05-25-2009, 08:04 PM	#4
m911gt Carless in Chicago View User's Garage Drives: 08 Blk LB Join Date: Oct 2008 Location: Chicago Posts: 2,479	I believe the throttle body is limited to around 80% open for WOT on the yaris. One benefit of upgrading to the Matrix/Corolla throttle body is that it is a larger opening to begin with so 80% is actually allowing more air than the stock TB. __________________ Wanted: Forced Induction Some say that he is the secret love child of Ferrari and Porsche, and others say that he would lap James May twice in a 1/4 mile drag race. All we know is that he is called The Stig.

05-25-2009, 08:18 PM	#5
PreciousPups4U I really LOVE this car!!! View User's Garage Drives: 08 Bayou Blue LB AT Join Date: Oct 2008 Location: Lexington, SC USA Posts: 887	When I set up my scangauge I seem to recall having to set engine size to 1.5, gas tank size to 11.1 and TPS to 21 (this might fix your problem). I seem to recall reading the TPS setting thing on here somewhere, maybe from Bailout. Someone please post if I have the numbers wrong or if there is something else that needs to be set up initially. __________________ Cindy “If there are no dogs in Heaven, then when I die I want to go where they went.” - Will Rogers

05-27-2009, 08:18 PM	#9
talnlnky Audio Junky Drives: 08 liftback Join Date: Oct 2008 Location: Spokane, Wa Posts: 1,412	To me 15-80 seems to be the TPS range... sometimes it'll go to 14, 13 is the lowest i've ever seen, but generally 15-17 is what I see. DFCO doesn't appear for a prolly 1-1.5 seconds after I take foot off pedal for me... seems to be a lag in the SG. ALso... DFCO kicks in much quicker when the engine is warm... I've noticed it doesn't like to go into DFCO when the engine is say... 90F or lower. __________________

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05-25-2009, 05:40 PM	#1
schleppy I love momentum. View User's Garage Drives: 2009 Yaris LB, Red Join Date: Feb 2009 Location: Boston, MA Posts: 587	New Scangauge owner questions I tried searching the forum already, but I haven't found any answers. I apologize if I missed them. So far the only configuration I've done on the SGII is change the engine size to 1.5L. 1.) The TPS readout never seems to go below 14, and at wide open throttle reads 80. Is this normal? 2.) Shouldn't the iMPG register 9999 (DFCO) a second after I take my foot off the gas entirely? It only seems to do it when I'm driving around town. On the highway it jumps into the 140mpg range when I take my foot off the gas. Thanks MPGers!

05-25-2009, 07:47 PM	#2
supmet Banned View User's Garage Drives: 2007 4 Door Yaris Join Date: Jan 2009 Location: Southern California Posts: 1,357	2) DFCO requires the engine to be at a certain RPM to activate, so just taking your foot off the gas doesn't guarantee DFCO.

05-25-2009, 07:50 PM	#3
schleppy I love momentum. View User's Garage Drives: 2009 Yaris LB, Red Join Date: Feb 2009 Location: Boston, MA Posts: 587	Ahh, I see. Thank you! Anyone have answer for #1?

05-26-2009, 04:33 PM	#6
BLH Drives: 2007 Yaris Sedan Join Date: Apr 2009 Location: CT Posts: 271	#1. Mine says 14 or 15 with no pressure on the accelerator.

05-26-2009, 04:38 PM	#7
schleppy I love momentum. View User's Garage Drives: 2009 Yaris LB, Red Join Date: Feb 2009 Location: Boston, MA Posts: 587	Where do you set the TPS?

05-28-2009, 04:45 PM	#10
BLH Drives: 2007 Yaris Sedan Join Date: Apr 2009 Location: CT Posts: 271	Page 16 of my manual. MORE>SETUP>FUEL>CUTOFF