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Cant get car dialed in

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ArmyGSX

10+ Year Contributor
111
0
Nov 20, 2009
Sanford, North Carolina
(Copied from ECM tuning fourms)

I am trying to get my car dialed in and for the life of me it just will not let me.
I set the maf settings for it to read .25-.26 AirflowPerRev and after a few mins it will either shoot to .27-.28 or drop to .23-.24. Or I can dial it in and turn off the car.. turn it back on and its way off again. On top of all of that the injectors will not dial in. Once again it seems to dial in and then when I restart the car it will be off (combindFT will be 18%!!) I add deadtime to lower the ft only for it to shoot back up after a shutdown and restart... I am at a loss as to why it just wont stay stable.. Any help would be great.

I am sure its something I am overlooking as I am new at this.

PTE 680cc injectors and stock maf

This is a idle log so you can see the settings I am using
 

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Make sure you are resetting the fuel trims once you get everything dialed in properly.
 
Make sure that the engine is at full operating temp when you make adjustments. just in case you didn't know . you should be able to right click on the log itself and go to maf comp adjust combined fuel trim and hit the use template button . then adjust the combined fuel trim with the injector dead time . that should get you started. go for a cruise and get a log then post up the results. good luck
 
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