Have you checked the following:

throttle p[osition sensor--->vane air temperature sensor---->vane air flow
meter---->idle speed contorl solenoid valve---->

Instructions are too long to go into here but I uploaded some jpegs in zip
format to the following link:
Zipped:

http://www.savefile.com/files/1277322

They will give you examples of what to do to test and where to look, and
what readings you need to watch for in the tests.

I suggest that to ease your own mind to download and before you open the
file-or unzip, that is, to upload them to www.virustotal.com and to Jotti's
virus on line scanner
http://virusscan.jotti.org/

to check for viruses or other booboobads.  When you are satisfied then
unzip and try to find a solution.  My daughter has a Mazda and I did this
project recently.  Now I have to replace her front struts---> that looks
like its gonna be a job............arrgh@!!

hit between 2000/2500RPM's at cold start for about 4 to 5 minute
gradually lowering to 750RPM's. I have not yet gotten a good solutio
from other forums so I hope this is the place

Thankyou for th
information! I hope I can solve this problem it drives me nuts. Th
only solution I have is to immediately shift into reverse or drive t
ng the RPM to 750rpm's. The coolant Temperature switch sounds o
interest. Thankyou