I have a problem that I hope you guys can recognize easily.
The car starts fine and idles fine when cold about 1100RPM. After about 5 minutes of running it idles poorly and sometime stalls when i stop. However after it's completely warmed up, it idles fine around 700. It runs smooth at all times at high speed.
When it's about to stall, I notice the economy gauge jumps up about 20%(less economy), When it's about to die, the RPM's drop to about 500, if it doesn't stall it jumps up to about 1200-1400 momentarily. Again, it runs fine when completely hot.