Should i b worried, weird fast idle

[ttgvr4]

When i started my car 2 leave work yesterday the fast idle went up 2 1800rpms and dropped 2 800rpms but corrected itself and went back 2 fast idle? should i b worried about this first time, and only just had car serviced. Put a fuel cleaner in tank about a week ago and its alway been filled with 98 bp? Can anyone reflect on this matter should i reset the ecu or just keep an eye on it the car itself is a 02 galant vr4 with 85000kms never missed any services in Japan or Aust. thanks

 

[smohekey]

Have you had the battery disconnected recently?

 

[ttgvr4]

No i havent had the battery disconnected, going 2 change the battery but worried about the airbags going off? Should i reset ecu?

 

[Kitty's VR4]

If you change the Battery, that will reset the ECU, have I missed something, Your not removing the steering wheel anytime soon? The air bags would deploy if you take a sledge hammer to the bumper though.... (sorry poor attempt at humour) Truly I wouldn't be concerned about the Airbags if your only changing the battery....

 

[ttgvr4]

Ok thanks for reply, never owned car with airbags before thats all and wanted to make sure. Someone told me to be careful, didnt think it would be a problem thanks again time for battery upgrade.