Yesterday I changed the L pipe for my intercooler and made a better ground for my wideband. Before it ran perfect with good afr's. Now idle is good, however, whenever I give it gas it drops to 10 on the gauge. Sometimes it will slowly go back up to where it should be on light throttle, however if i let off and in neutral it drops to 10 then slowly go back up to 14.7


My mods are: evo16g, 255fuel pump, fmic, larger injectors, evo8 ecu tuned. I know issues could be with stock fpr, injectors etc, but it was running perfect before i switched L pipes.