Cold air intake loss of power on Ecotec

[Ethanol225]

So recently I was curious about a cold air intake for my vy Ecotec and I thought that I would make a makeshift one to see if the gains will be worth it. So I cut out a portion of the stock air Boxster the bottom facing towards the headlight and cut a small section of non structural steel behind the headlight to allow for cold air from behind the bumper and headlight and used some leftover plexiglass to make a enclosed area to limit hot engine bay air from entering the intake. Straight away I seemed to notice a lack of power and overall responsiveness. It sounds good and I get a nice induction whoosh and growl note but the car seems slower. I also fully cleaned the maf and throttle body after with no effect. I am yet to replace the original air box to see if power returns or if the sound from the air box for some reason made the car feel slower.

 

[mpower]

might need to do a relearn.

 

[Ethanol225]

might need to do a relearn.

How would one go about this? I assume you are talking about resetting the pcm memory as it has learnt to run optimally with the regular intake therefore cannot a just to the new intake. Would I be correct?

 

[mpower]

because i'm lazy i just searched the forum

ECU/Idle Reset

Is there a particular procedure to reset the idle after throttle body service? Also after reading LSI procedure on computer reset I'm not quite sure this works on V6 commodores. Pulled the bcm fuse out for 20sec then replace (ignition off offcourse) switch on ignition put in drive with foot on...

forums.justcommodores.com.au

 

[07GTS]

if u have changed the airflow then the ecu needs to have time to adjust to correct for it, also just getting air from the bumper dosnt make it cold if u can read the iat before and after changes that will show u if its working or not, one of my first mode was the pod behind headlight in my VE with iat sensor in tube next to the pod and it was still 45+ deg air compared to OTR 30-35 deg air