2007 Corolla S idle RPM's

[sprtzfrk]

I just purchased a mtx 2007 Corolla S on saturday and I have noticed that when idling with the heater on the RPM's do not want to actually idle. The tach is constantly going from 900 to 1000 RPM's and back. I assume this can be tied to the computer just trying to learn its IAC settings. Just wondering if any of the other 07 Corolla owners had noticed this or if I should probably take it to my dealer and have them fix it?

Thanks for any help.

[daniel2002p]

id say if its just a 100rps difference dont worry about it...

D

[sprtzfrk]

Thanks for the reply. I figured that it wasnt an issue. The computer should settle down and find the optimum settings once it gets a few miles under its belt.

[Raddman]

Originally Posted by sprtzfrk

I just purchased a mtx 2007 Corolla S on saturday and I have noticed that when idling with the heater on the RPM's do not want to actually idle. The tach is constantly going from 900 to 1000 RPM's and back. I assume this can be tied to the computer just trying to learn its IAC settings. Just wondering if any of the other 07 Corolla owners had noticed this or if I should probably take it to my dealer and have them fix it?

Thanks for any help.

I don't want to sound stupid but what is a mtx?

[Jonny Steele]

Ya, i have an 07 also and it has about 8000 miles and it does the same thing, mine does it b/t about 750rpm to about 850 maybe 900, just every couple secound it switches from one to the other, even with the heater off

[sprtzfrk]

mtx = manual transmission