Tried new sparkplugs and nothing. Tried good working coils still nothing. Had an O2 sensor coding off and on for awhile so replaced both of them still nothing. Last thing I tried was a new fuel filter and checked fuel pressure. Pressure was around 45psi and when I took vacuum line off fuel pressure regulator it jumped to 50psi. Book said to plug vacuum line and it should go up 3-10psi when I pluged the line it did nothing.
Car runs real rough at idle and wants to die when I try to take off from a stop sometimes it does die. When driving down the road doesn't sound bad but you can tell it still has misfiring cylinders.
Any advice and help would be appreciated as I'm at the end of my rope with this car. Thanks.