F00Mustang

Does anyone else's car seem to idle very high on a cold start. Cold meaning it's been sitting for 5+ hours. When I start my car, it jumps to about 2K rpm's then over the next 15-20 seconds it drops to about 1100 rpm's. It will then continue to operate at that point untill the engin reaches full operating temp.

I don't know if my mods may be a factor in this, but I don't remember my car doing this untill I switched from the diablo to the SCT tuner.

Any input would help.

chrisc

this is very normal...happens to me pretty much every morning because i park outside and start driving at 6:30am

you also may see the CEL blink because of misfires if you push your car

algregory

I vote for a tune problem. [:@]

Country1969

When I start my car its around 1100 and between 30 seconds and 1 minute or so it drops down around 750 or so on warmer days. When its cold in the morning i start it and go back into the house, so I really dont sit there and watch it,but when I come back out the car is warmed up.

Like778

my 03 gt has always idel high during cold start, about 2000rpms. after 2-3 minutes it warms up and returns to normal range, no big deal.

Daniel60

That is totally normal. Enjoy your car and don't worry.

LesteR723

perfectly normal, its nto a programming error its ment to run your engine at higher RPMS without wasting much extra gas to get the temp ^ quickyl