Diablosport Forums

I have a car I am figuring out & I am having trouble with one table in the A9L processor. I have a custom air meter that I am sorting out & building a maf curve for so I have it forced open loop at all times. In the FUNCTIONS under BASE SPARK ADVANCE there is a CLOSED THROTTLE SPARK ADVANCE...... If I change this table at all it makes the car run poorly & stumble & miss... It will have this problem at all throttle positions. When I change it back everything is fine. I am concerned about what is going on & if this table is controlling my timing when it is not actually at "closed throttle?"

Any Ideas??

This is an interesting issue, I don't remember ever needing to modify that parameter on an a9l processor. Normally if I want to change the Idle Spark I will do so using the Global Spark Advance Scalars, There is an adder for Closed and Part Throttle. Give these a try and see if it helps any.

2007 f 150 5.4 3v
Need ori file for computer code (rxdg3a3)
Thank you