questioning scangauge accuracy
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Senior User
Joined: May 2007
Posts: 132
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So the x monitor is getting the signal before the truck computer does and is reading correctly but maybe corrupting the signal down line from it is what your theory is. I will have to try unhooking the x monitor tonight
FTE Sponsor
Joined: Apr 2006
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There really should be interferance between the two. It is possible that there could be some corrosion where we are making the connection which could be causing some resistance. I would take the connection apart where we make the connection check to make sure there is no corrosion. Put a little dielectric grease back into the connection and see if that corrects it. The readings in the Xmonitor are very sensitive to ground. You might want to check the ground to the control module as well. Make sure they are clean and solid.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
That's correct. But the x monitor that he's speaking of, sold by BD Diesel Performance, gets it's transmission temperature by tapping into the TFT sensor wire. My theory is that the x monitor is interfering with the computers ability to properly read the TFT sensor, not that the Scanguage is interfering with anything. It's just reporting the TFT value given it by the computer.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Just for reference, I made a note of my scangauge readings this afternoon when I got off work. My airconditioning panel said it was 102 outside (dang hot). Immediately after cranking up I got these numbers:
109 fWT (Coolant)
109 EOT (oil)
104 FIA (intake air #2)
110 TFT (trans)
The truck had been sitting in the sun in a parking lot for 8 1/2 hours, I guess there could have been a little bit of heat left in it from the morning drive, but as you can see my #'s dont agree dead on either but it is pretty close and I think by the time its in the 130-150 range I'm trusting it to be Right. If the wiring looks ok, I'd double check the setting for the TFT parameters in the scan gauge. These are working well for me:
Trans. Fluid Temp.
TXD: 07E1221674
RXF: 046205160674
RXD: 3010
MTH:000100080000
NAM: TFT
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
If you think its the scangauge call them I think all the fluid temps should be about the same after cold soak
see how all rusty axelrod fluids temps are really close at his start
Intake air can be off a little because its not a fluid but should be close
mine would read mpg all over like 10mpg and bounce to 9999mpg at a very rapid rate they sent me a new one no??? I sent the old one back they paid all shipping everything I had good customer service
unless the sensor bad tft do you have any cel on any codes
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
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Hotshot
Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
My first SGII read 46 FICM volts even though it was 48 at the FICM screw. My second (beta test unit) reads right on the money. FWIW-- my 04 doesn't read codes at all on either unit and I know it has 2 for sure.
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
Its definatly a better gauge than a code reader Iv never picked up any codes with it either but I havent had any cel on since Iv had it either.
It probably picks up all the generic codes
I think it might have a hard time with the dealer specific codes IDK
It probably picks up all the generic codes
I think it might have a hard time with the dealer specific codes IDK
Lead Driver
Joined: Feb 2011
Posts: 8,241
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From: L.A. (Lower Alabama)
I agree in the code reading. It's advertised as CAN compliant but I seen several posts where it's not reading vehicle specific codes. I'm not too interested in the trip computer functions either though. Just need some gauges. 
Elder User
Joined: Oct 2010
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What are the xgauge codes for reading FICM voltage?
Lead Driver
Joined: Feb 2011
Posts: 8,241
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From: L.A. (Lower Alabama)
Here is a thread with a lot of codes. If you read through it ther is a link to an Excel spreadsheet you can print page 2 and have 'em all on one page.
Maybe this thread should be in the tech folder?
https://www.ford-trucks.com/forums/s....php?t=1049918
Maybe this thread should be in the tech folder?
https://www.ford-trucks.com/forums/s....php?t=1049918
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
FMP 07E02209D0 0462450906D0 3010 006401000000 FICM Main Power (Volts 47-48)
FVP 07E02209CE 0462450906CE 3010 006401000000 FICM VEHICLE POWER (SHOULD BE 12 VOLTS)
FLP 07E02209EF 0462450906CF 3010 006401000000 FICM LOGIC POWER (SHOULD BE 12 VOLTS)
FVP 07E02209CE 0462450906CE 3010 006401000000 FICM VEHICLE POWER (SHOULD BE 12 VOLTS)
FLP 07E02209EF 0462450906CF 3010 006401000000 FICM LOGIC POWER (SHOULD BE 12 VOLTS)
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
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From: Central Oregon
My SGII picked up codes on my 04. The one code I kept getting, which lit the CEL, was P0488. I haven't seen the CEL for quite sometime now, since I cleared it with the SGII.
I did enter the DTC gauge which counts, from what I understand, the "soft" codes until the "soft" code reaches a particular count which then throws the CEL.
I'm not sure if I am understanding that right, I'm just not sure.
I did enter the DTC gauge which counts, from what I understand, the "soft" codes until the "soft" code reaches a particular count which then throws the CEL.
I'm not sure if I am understanding that right, I'm just not sure.