Avcr Not Holding Boost Properly

[Christoff]

Hi guys. I recently had and avcr installed. When it was on the dyno my tuner noticed it was a bit "lazy" as in it would spike higher and slowly bring the boost down. For example if i was running 10psi it would spike to say 14 psi and slowly drop back to 10 etc. Then yesterday i went to play around with the the boost settings and when i tried dropping it back from to anything under 10psi like 7 8 9psi didnt matter it was still holding at around 14 psi and this was on both boost settings. Any ideas why this could happen? Cheers

[Guest two.06l]

Hi guys. I recently had and avcr installed. When it was on the dyno my tuner noticed it was a bit "lazy" as in it would spike higher and slowly bring the boost down. For example if i was running 10psi it would spike to say 14 psi and slowly drop back to 10 etc. Then yesterday i went to play around with the the boost settings and when i tried dropping it back from to anything under 10psi like 7 8 9psi didnt matter it was still holding at  around 14 psi and this was on both boost settings. Any ideas why this could happen? Cheers

<{POST_SNAPBACK}>

Try lowering the duty cycle.....what sort of wastegate are you using?? spring tension my be too great.

[Christoff]

With the duty cycle i believe you set in the same function screen as the the boost. If thats the case its on 0% so it hasnt been set. As for the wastegate its stock and stock turbo aswell.

[Busky2k]

First of all, make sure the gear judge is set up correctly. Then make sure gear based learning is on and then set the duty to about 50% and go from there...

[Christoff]

With the gear judge what do you men exactly by setting it up properly. I pretty new to this and i think the instructions are in japanese.

[Busky2k]

Go to www.apexi-usa.com and get the english version. That should help ya a great deal...