454 mag mpi hang idle

snowman51789

Petty Officer 2nd Class
Joined
Sep 8, 2010
Messages
136
I went and looked at a 96 mirage 257 with 454 mag mpi motor in it with a bravo 1 drive. I decided to buy it. So the owner and I took it out for a test drive and I noticed when I came to a stop , the motor did not want to idle down below 1k rpm unles you "blipped" the throttle. I'm brand new to efi and mpi engines. How worried about this should I be? Any guess if what it could be?

Thanks
 
Top