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Message: <blockquote data-quote="Lee12609" data-source="post: 775070" data-attributes="member: 12415">first suggestion is check for a leak between the MAF and throttle body, sounds like metered air leaking. if you find nothing in that area move to the manifold/plenum and look for leaks. the most common leak is going from the center of the plenum (back side towards firewall) going to the evap solenoid, or from the solenoid to the inner fender, but most of the time a small vacuum leak from a hose wont cause any noticeable problem. the decel bucking really makes it seem like metered air leaking, not like unmetered air entering. think of a turbo car that recirculates from the bypass valve (bov), when the ricerboys run an open blow off they have the same problem because the MAF reads that incomming air, then its released instead of injested with the fuel.exhaust leak wont cause any of the above issues.i thought in another thread you said one of your injectors failed due to being at like 98% duty cycle? i have 2 sets of #19 injectors you can have for shipping, both worked flawlessly, although i doubt it will fix your problem (one set off my friends boosted 95 cobra upgraded to #30s, other set off my boosted gt upgraded to #42)...start by checking ANY connection from the MAF to throttle body, that includes the breather hose to the valve cover.</blockquote>