Coolant Temperature Hack. Better MPGs!

Flying White Dutchman · 08-30-2008, 12:35 PM

ok is the hymotion pack taking more standby current from the 12volkt batt. when the car is turned of?

sandman · 08-31-2008, 11:08 PM

Here is a neat video you can see this guys coolant hack and also some neat looking gauges..

YouTube - CNN : Eco Solutions : Hybrid Hackers

diamondlarry · 08-31-2008, 11:35 PM

Those gauges look like the Super MID gauge made by Yoshi. I'm jealous since I see he has 3 strung together and 2 is the maximum for the Scanguage.

My coolant hack is working great so far. Somewhere, the concern was brought up of the engine running lean since the coolant temp is being faked. I have a question about that: Wouldn't the O2 sensors sense the lean condition and call for the injector pulse width to increase?

TheForce · 08-31-2008, 11:41 PM

Quote:

Originally Posted by diamondlarry

Those gauges look like the Super MID gauge made by Yoshi. I'm jealous since I see he has 3 strung together and 2 is the maximum for the Scanguage.

If you really need more ScanGauges to look at you can always buy a bunch of these OBDII splitter cables.

OBD2Cables.com

I use one of these to use my SG and CAN-view at the same time.

I just wonder how may ScanGauges you can fit on the Prius dash?

diamondlarry · 08-31-2008, 11:50 PM

Thanks for the link Jay, I think I'll bookmark it. For the most part, 2 gauges is about right but there are those rare occasions when I want to monitor another parameter or two.

My guess is you could probably fit 6 or more SG's on the dash if you were creative in how you positioned them. Not that I've measured or anything like that.

Flying White Dutchman · 09-01-2008, 05:27 AM

nice and funny video . like it!

JimboK · 09-01-2008, 06:59 AM

Quote:

Originally Posted by TheForce

If you really need more ScanGauges to look at you can always buy a bunch of these OBDII splitter cables.

OBD2Cables.com

I use one of these to use my SG and CAN-view at the same time.

Any problems running the two together?

TheForce · 09-01-2008, 07:22 AM

They both run fine as far as I can tell.

brick · 09-01-2008, 05:20 PM

Quote:

Originally Posted by diamondlarry

Somewhere, the concern was brought up of the engine running lean since the coolant temp is being faked. I have a question about that: Wouldn't the O2 sensors sense the lean condition and call for the injector pulse width to increase?

When the car is running closed-loop (probably immediately after the S1 warmup) the answer is likely yes. When it first starts, the O2 sensors do nothing so it would not know to adjust the mixture. Maybe you should configure the SG to give you the open loop/closed loop display and only start using the hack after it reads closed? I **think** that you would be good-to-go as far as mixture is concerned.

Flying White Dutchman · 09-27-2008, 06:49 AM

and?
after a while can you tell if your still using it?
and no problems?

08-30-2008, 12:35 PM	#31
Flying White Dutchman Senior Member Join Date: Dec 2007 Posts: 1,423 My Car: 2005 Prius Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	Re: Coolant Temperature Hack. Better MPGs! ok is the hymotion pack taking more standby current from the 12volkt batt. when the car is turned of?

08-31-2008, 11:35 PM	#33
diamondlarry EPA MPG #'s killer Join Date: May 2007 Location: Elkhart, IN Posts: 535 My Car: 2007 Prius Package: #5 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	Re: Coolant Temperature Hack. Better MPGs! Those gauges look like the Super MID gauge made by Yoshi. I'm jealous since I see he has 3 strung together and 2 is the maximum for the Scanguage. My coolant hack is working great so far. Somewhere, the concern was brought up of the engine running lean since the coolant temp is being faked. I have a question about that: Wouldn't the O2 sensors sense the lean condition and call for the injector pulse width to increase?

08-31-2008, 11:50 PM	#35
diamondlarry EPA MPG #'s killer Join Date: May 2007 Location: Elkhart, IN Posts: 535 My Car: 2007 Prius Package: #5 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	Re: Coolant Temperature Hack. Better MPGs! Thanks for the link Jay, I think I'll bookmark it. For the most part, 2 gauges is about right but there are those rare occasions when I want to monitor another parameter or two. My guess is you could probably fit 6 or more SG's on the dash if you were creative in how you positioned them. Not that I've measured or anything like that.

09-01-2008, 05:27 AM	#36
Flying White Dutchman Senior Member Join Date: Dec 2007 Posts: 1,423 My Car: 2005 Prius Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	Re: Coolant Temperature Hack. Better MPGs! nice and funny video . like it!

09-01-2008, 07:22 AM	#38
TheForce I Plug-In My Prius Join Date: May 2005 Location: Wheelersburg, Ohio Posts: 2,138 My Car: 2006 Prius Package: #7 Nominated 7 Times in 2 Posts TOTM Awards: 0 Friends: 18	Re: Coolant Temperature Hack. Better MPGs! They both run fine as far as I can tell.

09-27-2008, 06:49 AM	#40
Flying White Dutchman Senior Member Join Date: Dec 2007 Posts: 1,423 My Car: 2005 Prius Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	Re: Coolant Temperature Hack. Better MPGs! and? after a while can you tell if your still using it? and no problems?

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