startup idle
hey guys, ok, just remembered a q i have. when i start my car it idles really high for a minute or 2, around 1k rpms and slowly goes down, is this an emissions thing built into the car, and can i stop it with my xcal somehow?
When the engine is first started, a very rich air/fuel mixture is required because cold fuel vaporizes slowly, As soon as the engine starts, it needs air to keep running and to offset the super rich fuel mixture hence the higher idle.
It's normal, but most people (me included) say upon initial startup in the morning,
it idles at around 1500....then slowly drops to normal. It's kinda like an automatic
choke I guess. Don't trip on it.
it idles at around 1500....then slowly drops to normal. It's kinda like an automatic
choke I guess. Don't trip on it.
???????? Stock idle is 750. Even with the whipple tune mine idles at 750. My brenspeed tune was 850, but I changed it back to 750.
ORIGINAL: marcuskeeler
Mine never has idled as low as 750 either stock or with the two seperate tunes I've had. 900 is the lowest, and that rarely happens.......
Mine never has idled as low as 750 either stock or with the two seperate tunes I've had. 900 is the lowest, and that rarely happens.......


