J John M New member Sep 6, 2009 #1 I have a 1996 Chevy Lumina with 3.1 multi-port injection. Fuel pump and filter just replaced. The engine runs great when the engine is cold but after it warms up it spit and sputters. What could be the problem?
I have a 1996 Chevy Lumina with 3.1 multi-port injection. Fuel pump and filter just replaced. The engine runs great when the engine is cold but after it warms up it spit and sputters. What could be the problem?
