High Idle on startup

[Drews93fox]

So I have a 93 mustang (stock motor)and I have problem when I start my car it like to idle up to 2500 to 3000 rpm. I have read through the first 4 or 5 pages in the surging idle checklist. From that i have cleaned the salt and pepper shakers and i cleaned out the IAC and that helped a little bit.

I don't think that I have the same problem as a surging idle because mine is just on start up. My car will idle down to around 700

Any help would be appreciated

Thanks Drew

 

[jrichker]

Have you done the set base idle procedure in the Surging Idle Checklist?

 

[Mustang5L5]

Set base idle, run for few days then check codes

 

[Drews93fox]

ok I will set the base idle and print off the surging idle checklist and go through it this weekend

Thanks for the help guys

 

[2001stang4.6]

i was told once that if your timing is set to high it can cause that. so you might want to check the timing ?