capemaydiamond
Contributing Member
I have a 454 tbi with a mefi 1 system. When I accelerate to 2000 rpm the motor cuts out and drops to 1000 rpm and pops through the throttle body. Once it drops to 1000 rpm I can then accelerate again but cannot pass the 2000 rpm threshold. The motor runs great at 1900 rpm just not any higher. I have replaced the coil and the ignition module checks out fine. What could possibly be causing this as I do not want to get into throwing parts at it that are not neaded. Thanks.