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Old 04-03-2015, 12:06 PM   #1
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fuel trims?

I'm trying to figure out my horrible gas mileage (17/23), do these fuel trim numbers look right to you? this is in 6th gear at roughly 75 mph, maybe 3000/3500 rpm...


04 SVT, 175k miles, K&N Air Filter, ORP/No Cat, Tune=Unknown.


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Old 04-03-2015, 09:57 PM   #2
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You cannot go by one reading , you could of been sightly on or off the throttle and that would drastically change the STFT and your recording STFT2 which the Focus doesnt have

The LTFT is another story there showing a 10%+ on the fueling over time , it would help if I could see the entire log and see a few other things , you say you have a tune what flasher do you have ?

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Old 04-03-2015, 10:41 PM   #3
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Hi Tom, thanks for your help here. Heres a link to more detailed log, but if theres some other data youd like to see, let me know and i'll generate a new one tomorrow

re: tune, I actually meant that its unknown whether I have a tune or not. Didnt get much info from previous owner and no, i have no flasher.

definitely saving to get a tune, hopefully get one from you in the next couple months.

thanks

kevin
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Old 04-04-2015, 08:50 AM   #4
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I tried to look it over but far to many things in the log that are not needed and not enough of the things needed

Can you choose and select things to log ?

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Old 04-04-2015, 10:08 AM   #5
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yes, sure. can you give me a list of what would you like me to log?

I use Torque Pro and a OBD-II reader...Thanks again Tom, i'm still very much learning about all this so I really appreciate your patience
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Old 04-04-2015, 12:27 PM   #6
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rpm
load
maf voltage
stft1
engine temp
intake temp

lets start there

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Old 04-04-2015, 09:55 PM   #7
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Ok, here's another log with most of what you asked for, except I couldn't find a way to log the MAF voltage, just the MAF Rate in cubic feet/min

https://www.mediafire.com/?ye8thrv6og1f12g

is there another way i don't know about to get the MAF Voltage? I don't even see it as an option anywhere in the Torque app
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Old 04-05-2015, 09:04 AM   #8
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Download teamviewer and give me a call some time this week and I can remote in and we can both look at the graph

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Old 04-15-2015, 01:38 PM   #9
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What was the resolution to this?
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Old 04-15-2015, 02:10 PM   #10
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no resolution yet, I haven't had time to take Tom up on his generous offer of taking a closer look at my live readouts...
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