paganing

Problem found. The new AEM intank fuel pump doen not operate in my subaru as supposed (voltage regulation). Change the set-up to a Wallbro and the problem's gone. Now I will complete my custom tunning. Looks like the AEM needs a relay added to the voltage supply.

Another future customer for 08+ vb

No suggestion at all. But I will check for a leak like you said. Thanks.

The car have dp, 3" cat back, k&n filter, tranny insert, oil cooler, aem fuel pump. I change the fuel pump because during dyno pulls the afr was getting higher with no fuel changes, so the tuner diagnose a fuel pump mal-function. After the fuel pump replacement the afr was better but not significantly to complete a safe tune.

I am at stage 2 and trying to have a custom tune but fuel problems arise. I change the fuel pump, knock sensor and the car still running lean (13afr) with a lot of fuel added to the AP fuel table. Anyone who can advise with the possible cause?

Anybody knows if the 2008 has the same vents in the trunk. I check it and there is only the lights hole. I am having trouble with fumes with the new downpipe and catback setup