low idle
 

Hey all, a month ago i got into a little accident where my front end was smashed in a bit, cross member bent in and broke my o2 sensor. so i had a check engine 61 ( sensor heater) and replaced the sensor but my car still has this one problem....

After driving around for 10 minutes or so, my car starts to idle extremely low. it will drop to about 500, stay there for a while, then another 10 min or so of driving and my rpm needle is at 100ish. almost sitting on the little black pin. My car starts to stall sometimes when i let off the gas.

I thought it was the o2 sensor, untill i replaced it, and i reset my ecu. so it seems like after my engine warms up, the idle drops like crazy. Does anyone have an idea of what could be causing this??

Re: low idle
 

is it throwing any codes? engine light turning on? also what kinda car is it? what year.. an does it idle fine when you first start it? that sounds really weird.. check your vacume lines as well. something might be worn, or came loose in the accident possibly? good luck man

Re: low idle
 

no codes/light, its a 00' y7 5spd.