WS6FirebirdTA00

iTrader: (33)

recently when the fans come on i noticed a dip in rpms, i have been adding to the airflow for the fans since then to correct the intake trims. what kind of values do you guys have to put in for the airflow values for fan 1 and 2?

ZL1Killa

iTrader: (17)

i noticed that when both of my fans come on that my motor might drop a little rpm but it then comes right back...that what you talking about? or is yours more serious

WS6FirebirdTA00

iTrader: (33)

yeah thats what im talking about , it drops and the desired airflow increases. from the logs when they both some on it wants .70 g/sec more, i dont know if thats too much or what

TAQuickness

iTrader: (28)

i believe the drop is due in part to the increases load on the altenator and the sudden increase in desired air flow. You could get a similar effect by turning your heater to all the way hot, then turning the fans on full blast.

WS6FirebirdTA00

iTrader: (33)

when i ran the heater yesterday, actually did it to check the same thing, it was fine. my idle trims go from 0 to +0.40 when fan 2 kciks in

BubaGumpShrimp

iTrader: (1)

its just the load on the alt... If you really want to see a change try putting the ac on or the rear defroster with headlights on

WS6FirebirdTA00

iTrader: (33)

im not asking why it changes, im well aware of why. its properly adjusting the airflow for fan 2