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installed lmaf and 42lb injectors and flashed my ecu

  • Thread starter Thread starter vortech00gt
  • Start date Start date Apr 4, 2005
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vortech00gt

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#1
  • Apr 4, 2005
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....it threw a bank 1 was too rich, i was under the impression that when i hooked up my sct xcal that it would take care of all that,
 

DBMSTNG

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#2
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is the SCT excalibur programmed for the Lmaf and 42's?
 

jstreet0204

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#3
  • Apr 4, 2005
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Check to see if either of these two things may have happened.

1) The LMAF was calibrated for the 42's (not recommended since it skews load scaling) and the flash was programmed with a stock LMAF curve.

2) The flash was programmed for the stock MAF.
 

DBMSTNG

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jstreet0204 said:
Check to see if either of these two things may have happened.

1) The LMAF was calibrated for the 42's (not recommended since it skews load scaling) and the flash was programmed with a stock LMAF curve.
Click to expand...

it depends on the size LMAF he has. the 90mm is calibrated from the factory for 42's, the 80mm is calibrated for 30's i think.
 

jstreet0204

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#5
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DBMSTNG said:
it depends on the size LMAF he has. the 90mm is calibrated from the factory for 42's, the 80mm is calibrated for 30's i think.
Click to expand...

It isnt calibrated from the factory for 42's unless you ask for it. The MAF has a specific curve and the EEC Has the variables for the injector slopes. They calibrate MAF's to avoid having to change the injector slopes in the EEC which is the right way to do it.
 
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RedGTvert

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#6
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Guys, stop with the bad information. Ford factory MAF's are not calibrated for any injector size. All transfer functions are handled by the computer and it needs to be tuned via a chip or computer flash.
 

jstreet0204

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#7
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RedGTvert said:
Guys, stop with the bad information. Ford factory MAF's are not calibrated for any injector size. All transfer functions are handled by the computer and it needs to be tuned via a chip or computer flash.
Click to expand...

In the FMS catalog it states that you can have it re-calibrated for use on ther vehicles. Again though, I don't recommend doing it that way.
 
R

RedGTvert

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#8
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jstreet0204 said:
In the FMS catalog it states that you can have it re-calibrated for use on ther vehicles. Again though, I don't recommend doing it that way.
Click to expand...

Not sure what you are reading or if it is for the same thing, but Ford Factory MAF's do not have any calibration. All curves are handles by the computer.
 

jstreet0204

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#9
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RedGTvert said:
Not sure what you are reading or if it is for the same thing, but Ford Factory MAF's do not have any calibration. All curves are handles by the computer.
Click to expand...

This is from http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=6312

M-12579-L54**

Stock replacement 90mm 2001-04 F-150 Lightning Mass Air Meter

Requires recalibration for use on other vehicles
Click to expand...

Could be that they are refering to EEC recalibration, if so the wording is a little misleading.
 

Gearbanger 101

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#10
  • Apr 5, 2005
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RedGTvert said:
Guys, stop with the bad information. Ford factory MAF's are not calibrated for any injector size. All transfer functions are handled by the computer and it needs to be tuned via a chip or computer flash.
Click to expand...
This is true.
 
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RedGTvert

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#11
  • Apr 5, 2005
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jstreet0204 said:
This is from http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=6312



Could be that they are refering to EEC recalibration, if so the wording is a little misleading.
Click to expand...

I understand why you think that, but the recalibration is handled by the EEC. If you put this product on anything other than a Lightning, which has the LMAF settings as a default, then yes, it will require the EEC to be recalibrated for it. That is the required calibration.
 
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