1996 Ford Bronco 5.8
I have a 1996 bronco 5.8. It sat for about a month and when I started it up it ran really bad. When I'm completely stopped it has really bad acceleration and makes a "put put put' noise. It takes probably 30 seconds just to get up to 25 at a stop light. Also my tach is bouncing around when this happens. Even when I step on the gas it sputters a ton. I can't even take it on the highway because the throttle response is terrible and when i get up to 60 it just sits at 4000 rpms and i'm always worried it might blow up on me. I've looked all over a bunch of forums and see people have the same issues as me but nobody has ever found a fix for this. The only codes that come up are for an O2 sensor and my FPR(which ive replaced). I've changed my spark plugs, wires, FPR, and Fuel pump. I don't really want to keep dumping money into it if I keep buying parts for it just for it to run the exact same as it did before. Im wondering if it could be a vaccum leak, or i have clogged cats but I don't really know. Any ideas would really help. Thanks yall.