Hi comunity, i have a gt 2007 a/t.
A few weeks i installed CAI BBK
and all works perfect, but after i changed the catalytic converters for this PIECES
... and the install 2 flowmasters 50 series..
The check engine
light turn on, the error P0171 lean.. bank 1
I run sct x4 programmer, deleted o2 rear sensor, installed intake cai bbk, changed octane to 91 (because in my country only 91 and 95 oct but my options are 89 91 and 93)
The check engine turn on again... P0171..
What else should I change to forget the light? WOT I change the mix?
In x4 increse of 2%, 4%, 6%.... to 14%
Thanks and sorry for my bad english.