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efi265

lean wideband readings

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have been tuning is running e85 at the moment but has some lean spots around 3-4000rpm upto 22afr under deceleration and the fuel map graph is ugly what do you think 

cheers

 

e85.pcl

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Hi efi265,

sorry for the short abrupt answer, I am unwell and head for surgery tomorrow.

I will have a look at your PCL file today and see what I can spot.

What brand of wideband are you using.

Also it is not uncommon to read lean or very lean mixtures on overrun as these areas are not tuned very often.

Areas of high vacuum I find a good down hill run and tune these spots on decal.

Often these areas are way to rich and the wideband will read lean as there is a lot of unburnt air in the exhaust..

But to be sure I will check your pcl.

Regards

Dave.

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Hi efi265,

I have made some changes to your file.

I have tidied up you ignition main table, employed idle ignition timing control.

Disabled CCL , which you had active, this should only be activated and  setup once the engine is tuned completely and properly.

I removed the 38% fuel main trim and applied it to the main table as a 30% overall trim.

This pcl file is designed as a starting point for you for a much tidier and accurate tune.

Let me know what issues you have.

If you are using MIXTURE table to tune the fuel main table , please setup the filters as to deactivate recording transitional changes such as closing TPS, MAP values changes etc etc.

This will lead to bad fuel tables, not sure if you where or not, but just a side note for you.

Regards

Dave.

 EFI265 E85_DAVE_TOUCH UP.pcl

 

EFI265 E85_DAVE_TOUCH UP.pcl

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thank you will see how we go awsome thanks i am running a lc2 innovate wideband and am going to re-calibrate it if you can hope all goes well for you and thank you for your time cheers

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