I've replaced the induction kit with the stock airbox and now it's hunting for idle

[jim]

Morning, I have a facelift na that I bought a few weeks ago, it had an hks induction kit which I pulled out on Friday night and replaced with a stock airbox and new filter. I noticed it hunting a little this morning on the drive in to work, it's very slight when in neutral (and engine up to running temp) but a little more noticeable when sitting stationary but still in D (it's an auto). It's not all over the place by any means but it's not a steady idle.

 

Is it possible that it will just take time to adjust to the new airflow, or is it more likely that there's an airleak somewhere, or do I need to clean or replace sensors?

[straightsix]

Try an ECU reset first.

 

Pull the EFI fuse (under bonnet) or disconnect battery for a few minutes or so. Then take it for a drive of at least 20 minutes for the ECU to re-learn.

[jim]

Spot on, I'll give that a go thanks

[wile e coyote]

Check you have not left a pipe or lead off also