engine miss *help*

[pawsranch3]

hay yall, i just bought a 2000 c/c when i start up in the morning and get it seems to start smooth, but have a bad miss for about the first 1/4 mile. after that everything pretty much smooths out. after it warms up, i will only really notice the miss under heavy acceleration. so far i have changed the oil, cps, gpr, where do i go next....

 

[Tail_Gunner]

WELCOME!!!!!!

Check the wire harness connectors going into and under each of the valve covers. Those things are notorious for coming partially loose, enough to cause injector "misses".

There is also a connector clip available from Ford to keep the connectors under the valve covers together. They came out with this item to address this specific issue.

on edit: have you checked your glow plugs themselves? I saw you changed the relay, how about the glow plugs? When I recently did my fuel injectors, I also did the glow plugs. When I was done, I checked the old glow plugs with an Ohm meter expecting to find one bad. Turned out that 3 were bad.