Engine faultering (1 Viewer)

[Mobile38]

I have a 1990 FJ62, 4.0 fuel injected engine. Engine Family LTY40T5FBB5.
I will get intermittent engine faulting, usually under load ( going up hill).
Replaced fuel pump, but still have the problem. Any ideas or suggestions.

 

[Mobile38]

I just replaced the file pump and the old one was not clogged.

 

[Callahan Offroad]

fuel spark air or sensor.

That's all it can be.