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-   -   Flashed ECU (https://www.ft86club.com/forums/showthread.php?t=44195)

Djen 08-13-2013 07:57 AM
Flashed ECU
 
hi ther. if the car now have flashed ecu. the computer no longer controlled by the car ecu? I mean I just done tuning the car and duno if this goin be gone I have losing power some high AFRS this will be controlled by ecu itself and cure it sometimes?:popcorn:

Foobar 08-13-2013 08:54 AM
Have your tuner check your logs. Shouldn't have AFRs out of spec.

Sent from my Nexus 4 using Tapatalk 2

Djen 08-13-2013 09:05 AM
Quote:
Originally Posted by Foobar (Post 1137125)
Have your tuner check your logs. Shouldn't have AFRs out of spec.

Sent from my Nexus 4 using Tapatalk 2
well I sent logs im waiting for respone.. anyways I ve heard reseting ecu there is some couple handred miles driving to let the ecu understanding and learning. is this for stock oem ecu or same for ecutek flashed car?

mad_sb 08-13-2013 09:15 AM
Quote:
Originally Posted by Djen (Post 1137132)
well I sent logs im waiting for respone.. anyways I ve heard reseting ecu there is some couple handred miles driving to let the ecu understanding and learning. is this for stock oem ecu or same for ecutek flashed car?
what is changed with the reflash is the table data inside the ECU, NOT the ecu code itself for the most part. It functions just like the stock ecu with different targets for fuel, timing, cam angle, etc etc.

There will be a "learning" period with either stock or reflashed, but it does not take serveral hundred miles. Just one or two 20 minute drives is all it should take for throttle plate position, IAM, and long term fuel trims to settle in.

Djen 08-13-2013 09:21 AM
Quote:
Originally Posted by mad_sb (Post 1137147)
what is changed with the reflash is the table data inside the ECU, NOT the ecu code itself for the most part. It functions just like the stock ecu with different targets for fuel, timing, cam angle, etc etc.

There will be a "learning" period with either stock or reflashed, but it does not take serveral hundred miles. Just one or two 20 minute drives is all it should take for throttle plate position, IAM, and long term fuel trims to settle in.
damn, so what about A/F Learn Value and Knock Correction Learn been doing ?? I was loged in live data and keep tracking those :iono:




mad_sb 08-13-2013 10:00 AM
Quote:
Originally Posted by Djen (Post 1137158)
damn, so what about A/F Learn Value and Knock Correction Learn been doing ?? I was loged in live data and keep tracking those :iono:



A/F learn value is what i referred too as Long Term Fuel Trim
Knock Correction = IAM

They will continuously change but after a drive cycle or two they should be in the range they will likely stay in.


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