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Old 07-13-2018, 03:05 PM   #1
lug
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Brand: Thor Motor Coach
Model: ACE 32.1
State: Michigan
Posts: 85
THOR #11442
Auto Enginuity Test on the F53

Since I already owned and used this toool for my other vehicles I wanted to see if there would be any problems with the diagnostic software accessing the data on my 2018 F53. I posted a portion of the sensor feedback data. The I/M data was just as useful.Click image for larger version

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Old 07-13-2018, 04:53 PM   #2
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Brand: Thor Motor Coach
Model: Vegas 27.7
State: California
Posts: 289
THOR #10907
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Originally Posted by lug View Post
Since I already owned and used this toool for my other vehicles I wanted to see if there would be any problems with the diagnostic software accessing the data on my 2018 F53. I posted a portion of the sensor feedback data. The I/M data was just as useful.Attachment 11395
A tad rich but it all looks pretty much normal. Does it have non-e10 gas in it? Do a log cruising down the highway or a WOT pull and see what the fueling and ign timing looks like. If you know what you're looking at it will scare you into tuning it. WOT stays at stoich for 60 seconds, scary lean!
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Old 07-13-2018, 06:05 PM   #3
lug
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Brand: Thor Motor Coach
Model: ACE 32.1
State: Michigan
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THOR #11442
Since this was only a test there wasn't any need to burn fuel to get to operating temperature. I do mix my fuel with non-ethanol gas along with marine grade Sta-Bil.
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Old 07-13-2018, 06:32 PM   #4
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Brand: Thor Motor Coach
Model: Vegas 27.7
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THOR #10907
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Originally Posted by lug View Post
Since this was only a test there wasn't any need to burn fuel to get to operating temperature. I do mix my fuel with non-ethanol gas along with marine grade Sta-Bil.
That would explain the negative fuel trims. Most new engine calibrations are set for E10, the stoich tables start at 14.08 instead of 14.67. Your calibration is at 14.08 for stoich to compensate for E10. It would actually run better if you use E10. Ethanol is a GOOD thing, not a bad thing.
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Old 07-13-2018, 07:07 PM   #5
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THOR #5330
And defintely get away from the Marine Sta-Bil.
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