Official Scangauge II Thread - Share your Data, Discuss Settings ,Problems, Findings! - Page 8 - Toyota Yaris Forums

enkid · 09-16-2007, 09:09 PM

Edit 9/18/07, additions/corrections

Yes, it's normal. In fact it's our DFCO indication for the Yaris. Here's why:

DFCO is by definition, an Open Loop condition, because it's a fuel cutoff. Closed loop is when the computer is using signals from various sensors to meter how much fuel to inject. At the same time, the amount of fuel injected is one of the things that creates the conditions that determine what the signals will be from those sensors. In other words, it's a closed control loop. DFCO overrides this and cuts off the fuel injectors.

If you see Open Loop any other time, except briefly after a cold start, or briefly if you're drag racing or under very heavy load like climbing a steep hill, then something is probably wrong and most likely the check engine light will come on....and a trouble code will be waiting for the scanner function of the scangauge to read.

If you were driving a manual transmission, you'd find it will also switch back to Closed Loop when the engine speed drops below about 1000RPM with it in gear and your foot is off the gas pedal. At the same time you'd feel a very slight surge of power. That's DFCO switching out to keep the motor from stalling. Then you'd quickly have to stomp on the clutch and throw it into neutral, or into low gear and go....or it'll stall anyway.

On the other hand, scangauge fuel consumption calculation is unaware of DFCO, so it registers higher consumption than if you were in neutral. In my case, this helps offs offset consumption error calculation in the other direction.

I have a 96 Chevy conversion van which sat with a dead transmission and engine problems for 2 years. I've been reviving it this summer....the SG came in really handy diagnosing....and I was surprised to find it too, has DFCO.

andries · 11-06-2008, 02:46 PM

ScanGauge gives by the abbreviaton "MAP" no value ( Yaris 1.8 TS)

Can someone tell me whether that is normal?
Has the Yaris no sensor for the "MAP" value?

Thanks

365Motorwerks · 11-06-2008, 02:58 PM

Quote:

Originally Posted by andries

ScanGauge gives by the abbreviaton "MAP" no value ( Yaris 1.8 TS)

Can someone tell me whether that is normal?
Has the Yaris no sensor for the "MAP" value?

Thanks

Correct MAP and FPR both don't display as the ECU won't give a value.

Revsson · 11-12-2008, 11:11 AM

Where is the best place to buy a ScangaugeII nowadays? I thought I saw something
before the hack about a group buy?? or one of our vendors ??

cali yaris · 11-12-2008, 08:28 PM

from me. I cannot advertise my price due to manufacturer restrictions, but...

.... I'll be so HAPPY to receive your PM

Appalachian Trail 2007 · 11-12-2008, 08:34 PM

Quote:

Originally Posted by Pavel Olavich

I tend to agree with you, however I don't see a need for a special code to signify DFCO, because if DFCO is in process, then the injectors are no longer feeding gas, so then the GPH should be zero, yea? I've got an auto tranny in my Yaris, by the way, and I think DFCO works in conjunction with the grade logic, and torque converter lock up processes, but I can't be so sure. Yet.

By the way, that POS Chevy Aveo is not made by Chevy....it's Korean (Kia or Hyundai)...it's a rebadged POS, for sure...it cost less then our Yaris, but the cost of ownership over 5 years is much more.

A bit off topic, but what kind of oil do you run? What is your change intervals?

Thanks!

It's a Daewoo rebadged to a Chevy

Revsson · 11-13-2008, 11:53 AM

Quote:

Originally Posted by cali yaris

from me. I cannot advertise my price due to manufacturer restrictions, but...

.... I'll be so HAPPY to receive your PM

PM sent.

365Motorwerks · 11-22-2008, 11:26 AM

Quote:

Originally Posted by Revsson

Where is the best place to buy a ScangaugeII nowadays? I thought I saw something
before the hack about a group buy?? or one of our vendors ??

I did the group buys a while back and I'm back as a vendor with ScanGauges a-plenty. Checkout the sponsored sales area for my posts.

andries · 11-28-2008, 01:24 PM

Is it possible to change the $ sign into the € sign on a ScanGauge?

365Motorwerks · 11-28-2008, 02:22 PM

Quote:

Originally Posted by andries

Is it possible to change the $ sign into the € sign on a ScanGauge?

Not right now, you can do liters but the amount stays the same.

andries · 11-28-2008, 03:28 PM

Quote:

Originally Posted by 365Motorwerks

Not right now, you can do liters but the amount stays the same.

oke,thanks

EasyDriver · 03-04-2009, 09:46 AM

I was researching scanguage on the internet and read that an owner was having problems with a Rostra cruise control and Scanguage. Apparently they both were getting their signal from the ECU and if the cruise was on scanguage wouldn't work. Cruise would work if Scanguage was turned off though. Has anyone else had this kind of experience? If this is a problem, is there a workaround?

Mileage...I am not getting anthing near 35 of above in mileage, with 32.655 bing my best early last fall. I'm driving conservatively....although most of my driving is in town. I am just over the 2000 mile mark, and am hoping that it will improve as mileage goes up. Of course I realize that the extra cold winter that we have had here in Southern Michigan has taken its toll!

I will be getting an oil change in the near future, maybe that will make a positive difference.

jambo101 · 03-04-2009, 11:36 AM

I have an 08 with the dealer installed rostra cruise and my Scangauge works just fine.As for the crappy gas mileage it will get better as the temps heat up,snow tires come off and the gas gets reformulated to summer specs,on a trip last summer i was getting high 40'smpg highway,around town low 40's .
Welcome to the forum.

cali yaris · 03-04-2009, 11:41 AM

Scangauges are still in stock, and still at a price I can't advertise. PM if anyone is interested in one.

EasyDriver · 03-04-2009, 11:47 AM

Quote:

Originally Posted by jambo101

I have an 08 with the dealer installed rostra cruise and my Scangauge works just fine.As for the crappy gas mileage it will get better as the temps heat up,snow tires come off and the gas gets reformulated to summer specs,on a trip last summer i was getting high 40'smpg highway,around town low 40's .
Welcome to the forum.

Thanks Jambo101 for the quick response, it's appreciated. Maybe the rostra/scanguage conflict was a fluke, and not the norm!

Klink10 · 03-05-2009, 09:45 PM

Got my Scangauge today. Thank you Micro Image for the great price and fast shipping. Folks, if you can.....shoot Garm a PM for the best deal out there bar none.

MGargano · 03-08-2009, 01:13 AM

I ordered my Scangauge II today but I'm curious as to how it lights up? Does it automatically light when you turn the headlights on?

1NZYaris1 · 03-08-2009, 01:21 AM

automatically lights up when turned on , then you can change the color to
what ever you want

09-16-2007, 09:09 PM	#127
enkid Drives: 07 Yaris Sedan Join Date: Nov 2006 Location: RI, USA Posts: 25	Open Loop Edit 9/18/07, additions/corrections Yes, it's normal. In fact it's our DFCO indication for the Yaris. Here's why: DFCO is by definition, an Open Loop condition, because it's a fuel cutoff. Closed loop is when the computer is using signals from various sensors to meter how much fuel to inject. At the same time, the amount of fuel injected is one of the things that creates the conditions that determine what the signals will be from those sensors. In other words, it's a closed control loop. DFCO overrides this and cuts off the fuel injectors. If you see Open Loop any other time, except briefly after a cold start, or briefly if you're drag racing or under very heavy load like climbing a steep hill, then something is probably wrong and most likely the check engine light will come on....and a trouble code will be waiting for the scanner function of the scangauge to read. If you were driving a manual transmission, you'd find it will also switch back to Closed Loop when the engine speed drops below about 1000RPM with it in gear and your foot is off the gas pedal. At the same time you'd feel a very slight surge of power. That's DFCO switching out to keep the motor from stalling. Then you'd quickly have to stomp on the clutch and throw it into neutral, or into low gear and go....or it'll stall anyway. On the other hand, scangauge fuel consumption calculation is unaware of DFCO, so it registers higher consumption than if you were in neutral. In my case, this helps offs offset consumption error calculation in the other direction. I have a 96 Chevy conversion van which sat with a dead transmission and engine problems for 2 years. I've been reviving it this summer....the SG came in really handy diagnosing....and I was surprised to find it too, has DFCO. Last edited by enkid; 09-18-2007 at 10:21 PM.

11-12-2008, 08:28 PM	#131
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	from me. I cannot advertise my price due to manufacturer restrictions, but... .... I'll be so HAPPY to receive your PM __________________ 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.

11-28-2008, 01:24 PM	#135
andries aka Jack Wolfskin Drives: Yaris Join Date: Oct 2008 Location: Spain Posts: 239	change $ into € Is it possible to change the $ sign into the € sign on a ScanGauge?

03-04-2009, 09:46 AM	#138
EasyDriver Drives: 2008 Yaris Meteorite LB Join Date: Feb 2009 Location: Southern Michigan Posts: 61	Anyone having conflict between Rostra cruise & Scanguage? I was researching scanguage on the internet and read that an owner was having problems with a Rostra cruise control and Scanguage. Apparently they both were getting their signal from the ECU and if the cruise was on scanguage wouldn't work. Cruise would work if Scanguage was turned off though. Has anyone else had this kind of experience? If this is a problem, is there a workaround? Mileage...I am not getting anthing near 35 of above in mileage, with 32.655 bing my best early last fall. I'm driving conservatively....although most of my driving is in town. I am just over the 2000 mile mark, and am hoping that it will improve as mileage goes up. Of course I realize that the extra cold winter that we have had here in Southern Michigan has taken its toll! I will be getting an oil change in the near future, maybe that will make a positive difference.

03-04-2009, 11:41 AM	#140
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	Scangauges are still in stock, and still at a price I can't advertise. PM if anyone is interested in one. __________________ 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.

11-06-2008, 02:46 PM	#128
andries aka Jack Wolfskin Drives: Yaris Join Date: Oct 2008 Location: Spain Posts: 239	ScanGauge gives by the abbreviaton "MAP" no value ( Yaris 1.8 TS) Can someone tell me whether that is normal? Has the Yaris no sensor for the "MAP" value? Thanks

11-12-2008, 11:11 AM	#130
Revsson View User's Garage Drives: 2009 Meteorite Metallic LB MT Join Date: Oct 2008 Location: Southeast Wisconsin Posts: 810	Where is the best place to buy a ScangaugeII nowadays? I thought I saw something before the hack about a group buy?? or one of our vendors ??

03-04-2009, 11:36 AM	#139
jambo101 Drives: yaris 08 sedan Join Date: Oct 2008 Location: Montreal Canada Posts: 1,286	I have an 08 with the dealer installed rostra cruise and my Scangauge works just fine.As for the crappy gas mileage it will get better as the temps heat up,snow tires come off and the gas gets reformulated to summer specs,on a trip last summer i was getting high 40'smpg highway,around town low 40's . Welcome to the forum.

03-05-2009, 09:45 PM	#142
Klink10 View User's Garage Drives: 2007 Yaris Liftback Join Date: Sep 2007 Location: 910 Posts: 1,229	Got my Scangauge today. Thank you Micro Image for the great price and fast shipping. Folks, if you can.....shoot Garm a PM for the best deal out there bar none.

03-08-2009, 01:13 AM	#143
MGargano Drives: 2009 Yaris Hatchback Join Date: Feb 2009 Location: NJ Posts: 792	I ordered my Scangauge II today but I'm curious as to how it lights up? Does it automatically light when you turn the headlights on?

03-08-2009, 01:21 AM	#144
1NZYaris1 View User's Garage Drives: Yaris Join Date: Oct 2008 Location: New Zealand Posts: 2,566	automatically lights up when turned on , then you can change the color to what ever you want __________________ http://www.microimageonline.com/forums/index.php