Its when i hit boost even .5 psi. I bought a fcd first, thought i twasnt working, got the missing link, nothing changed. I did just order every single sensor for the IM manifold, got a steal for 15 bucks, couldnt pass it up. even if theyre all still good i can resell the sensors. hopefully get some money to go towards the safc. i got a a/f gauge from a friend, just not wideband. im gonna hook that up asap.