Idle transition tuning
05-12-2005 | 01:37 AM
#21
FormerVendor
Joined: Jan 2003
Posts: 525
Likes: 0
From: Melbourne, Australia
Originally Posted by QuickSilver2002
Yea, I really stated that wrong. I should have asked why turning the electric fans on would require the IAC stepper to open wider (which results in more load/fuel). I might be missing something, but I don't understand how the alternator would become harder to turn because the fans are on. It would make sense if you had a fan clutch that was being driven by the belts, but I thought the alternator was just a constant load. AC makes total sense though. I must be missing something basic.
Also, do you think the IAP has impact on the IAC position while the motor is running? There seems to be no clear answer on that one. Some seem to be seeing some results from changing it.
05-12-2005 | 11:05 AM
#22
TECH Apprentice
Joined: Apr 2002
Posts: 308
Likes: 0
From: Austin, TX
Originally Posted by gameover
alternator load is proportional to electrical load.
it is the IAC position when cranking, once the engine is running it is not used.
it is the IAC position when cranking, once the engine is running it is not used.
Thanks for clearing that up for me.
