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Old 06-30-2018, 09:19 PM   #1
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Scan Gauge II...What Do You Monitor and Why?

I had several of you recommend using the Scan Gauge II. So, I took your advice. Now, the question is what 4 functions to monitor? Please advise.
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Old 06-30-2018, 10:53 PM   #2
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Originally Posted by HappiPappa View Post
I had several of you recommend using the Scan Gauge II. So, I took your advice. Now, the question is what 4 functions to monitor? Please advise.
I monitor coolant temp (fWT), transmission fluid temp (TFT), instant MPG, and average MPG. I sometimes switch the transmission fluid setting to boost pressure. I don't use the fuel consumption feature, tachometer, speedometer, oil pressure, etc since i have other gauges for those.
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Old 06-30-2018, 11:03 PM   #3
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Some of my dash gauges were inaccurate or squirrelly. I compared the readings from my dash gauges with the readings from the ECU. I them displayed the most accurate or the most important on the ScanGauge D. In my case it was the coolant temperature, speedometer, tachometer and either the oil pressure, transmission temperature or voltage.

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Old 07-01-2018, 02:13 AM   #4
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Coolant temperature
Transmission temperature
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Old 07-01-2018, 06:23 AM   #5
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Same as what others are watching. Heat and fuel usage. Heat will kill an engine or transmission and both are something I can respond to before it becomes a serious issue. Fuel usage is also something I can control with how aggressive I might be driving or how heavy my right foot might be at a given moment.

Current OEM dash gauges are not much better than past trouble lights at least for the F53 chassis. For the most part they move in stages, Low, Med Low, Med, Med High, High rather than a steady movement of a mechanical or analog gauge. A bit like waste tank level indicators. One minute everything is fine and the next you're looking at the campground map for the dump station. If there's something wrong the Scan Gauge will show the steady increase rather than the jumps.
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Old 07-01-2018, 07:02 AM   #6
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I watch Water Temp, Voltage, RPMs and Avg MPG.

Coolant issues will ruin the engine quick.

Low voltage is a serpentine belt or charging system failure clue.

MPG is a benchmark of engine performance. If It goes down, somethings wrong.

RPMs shows me when I'm approaching my red line, I don't have a dash tachometer.

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Old 07-02-2018, 08:30 PM   #7
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Coolant Temp
Trans Temp
Avg Fuel

I also wanted the gauge to be able to read any codes and reset the CEL if I get one. I occasionally check to see what max readings I got on some of my runs. That's a cool feature to review after a trip. Those are the 4 I keep on most of the time but I'll scroll occasionally to see how things look.
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