Linear Logic ScanGauge III

[Grumpy Bear]

I have two Model II units and like them but this III model is a much better way to skin that cat. This is the summary page from my first calibration tank. 

 

 

 

This (below) is one of three screens you program your gauges into. The other two I'm still building but you can load between 4 and 9 per page plus this graphing page. 

When you initialize the unit to finds what is available and loads pages you choose from. It also detects protocols to there isn't any fuss nor muss.

There are even more X Gauges that can be loaded or sought out with the device. Also reads and clears OBDII trouble codes.

[Grumpy Bear]

MPG Accuracy

 

There is  calibration to the fuel economy that is a two step process. When the unit was initialized this vehicle (Raven) the first tank showed there was a 5.58% error. Reading 2.9 mpg better than it was. 

 

On the second fill, after the 0.35 gallon correction was entered on the first fill, the error was down to 0.02 gallons or just 0.36% on 3/4 of a tank fill. 2.5 ounces! 2/10 mpg over 300 miles. 

 

There is also a speed correction possible. Adjusting it by referencing GPS; I found the speedometer slow by 1%.  I noted that the ECU odometer was a few miles ahead of the DIC readout over its first 16K miles. This will not fix that. Just something I noticed. Perhaps 10 miles in a 100,000. 

 

As I am already well trained by the Scan-Gauge II unit the increase in mileage is not as dramatic as it was when I was first introduced to these instruments but my tank to tank consistency is greatly improved by the live graphs giving real time feedback and cancelation of tank to tank fill error. It cost twice as much and is delivering more than that in returns. IMHO. 

[OnTheReel]

I don’t always like what mine has to say, but it’s a great device. Much easier to work with than the Scan Gauge II I had.

[Grumpy Bear]

You can set hard alarms with this device too. I learned the hard way yesterday to take the time to program them. 

 

Raven caught a projectile in a radiator tube yesterday. Pin hole like the tip of a sewing needle. I just happened to be scanning the gauge when I saw it climb and shut it down well before any damage occurred. Had I not been actively scanning.....

[64BAwagon]

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Edited June 19, 2025 by 64BAwagon

[OnTheReel]

Advance Auto has them online for $219.99 with their promo code. I got the one in my truck from them and might grab another for the Jeep. Hard to beat that deal.

[Grumpy Bear]

I've started using the alarm panel to train myself to drive a CVT. RPM, road speed and manifold pressure limit alarms. 

 

A CVT was not on my gift to self list ever but they seem to be taking over and I could buy one cheap enough to sacrifice one to learn on. I'm more of a Ford Top Loader/Richmond 5 sort of guy. 

 

The one in the Mirage has a torque converter with a 10 mph lock up so leaves like a TH-350. And it has a two speed jackshaft system which goes low to high before 50. A belt Powerglide. 

 

I preconceived idea about how they would work on the road were pretty much wrong. The TCU is a learning system and adjust to your inputs. Not new but it is abrupt and quick to pick up bad habits if you allow it to. The Scan Gauge III system lets me train my ear and thus right foot to what is going on. I've made some simple input adjustments and it picked them up quickly and now it isn't much of a thought. I think I like these more than I thought I would and I love this iteration of the Scan Gauge although I do miss the performance section. If it has one, I haven't found it. 

[Grumpy Bear]

So trans temp for my Mitsubishi was not displaying correctly. Hit up the hot line and shortly they contacted me for a data log. All done by WIFI. These guys will work with you to solve issues with your system. FYI. 

[txab]

I've still got to get mine to register trans temp. I think I need to add it on to the monitored parameters

[OnTheReel]

11 hours ago, Grumpy Bear said:

So trans temp for my Mitsubishi was not displaying correctly. Hit up the hot line and shortly they contacted me for a data log. All done by WIFI. These guys will work with you to solve issues with your system. FYI. 

Good to know. There’s a few PIDs I’m going to ask them to add.

[Grumpy Bear]

23 hours ago, txab said:

I've still got to get mine to register trans temp. I think I need to add it on to the monitored parameters

 

You find it yet? 

[txab]

haven't had a chance to mess with it. Maybe this weekend

[Grumpy Bear]

They've had me data log twice now and today requested a third with a different logging version targeting the TCM. Tenacious is good. 

[Black02Silverado]

They are nice compared to the Scan Gauge II.  I wanted a little bit better looking gauge and got the Banks iDash Pro. 

I don't do all the extra stuff so this works for me.

[customboss]

2 hours ago, Black02Silverado said:

They are nice compared to the Scan Gauge II.  I wanted a little bit better looking gauge and got the Banks iDash Pro. 

I don't do all the extra stuff so this works for me.

Kewl Jeepers