Celica Forums - Celispeed.com - View Single Post

**Pineapple** · 09-21-2004, 05:02 PM

Yes. O2 doesn't work until it get warm. Old one will need longer to heat up also. Newer engine have heated O2 to help emission when engine is cold. It also help milage. ECU go close loop and run rich until O2 warm up.

09-21-2004, 05:02 PM	#6 (permalink)
Pineapple Location: Toronto Posts: 4,298 Join Date: Jan 2004 Last On: Yesterday 07:48 PM	Yes. O2 doesn't work until it get warm. Old one will need longer to heat up also. Newer engine have heated O2 to help emission when engine is cold. It also help milage. ECU go close loop and run rich until O2 warm up. __________________ http://photos.yahoo.com/fredericklaw http://members.rankmyride.com/pineapplelaw