been working on tuning and made great progress in the last year, learned alot. but now i have limited time due to my hectic work schedule. i can only spend a few minutes at a time tuning, the osty 2.0 helps alot in this case. over the last few weeks ive been able to get the car to run consistantly at different air temps, thanks to dominic sorresso for the IAT comp table. now i just need to figure out why the blms skyrocket during warmup. for example, right now air temps dip down to ~45* at night here, ill let the car warm up to about 130*F before i get on the road. the blms will climb up into the 140's and stay there, but after the engine reaches operating temp the blms return to normal. so what would i need to adjust during initial warm up?

*edit* btw this is for the mustang, S_V4

thanks!

 

There isn't anything that can be adjusted related to AFR, as it is in closed loop. Some masks have a cold O2 sensor bias that can be tweaked, but I don't believe that $8D does.

Make sure that the AIR system is disabled if not being used. As that will affect the target O2 window. And that EGR isn't being enabled too soon.

If it runs OK in closed loop while warming up I wouldn't worry about it. One vehicle I had didn't like closed loop at the original CTS threshold. Needed to bump it up a few degrees to hold off closed loop.

It then ran OK at the higher CTS when it entered closed loop.

RBob.

 

AIR and EGR have been disabled, it runs lean until the blms compensate. it doesnt run too bad, i had to add to the PE v coolant table, but thats it so far. ill look to see if there is a cold O2 bias and report back later.

thanks Bob