No change engine behavior cylinder no. 1

[slum dog]

Hey guys I need some fresh input troubleshooting a problem with my bakkie.
Vehicle in question is a Ford bantam rocam 1.6l year2005
Basically what I want to know

( if I have no change in engine behavior when no. 1 spark plug lead is removed or no. 1 injector plug removed what dose that mean???)

The engine idles roughly and doesn't Rev up smooth when no. 1 spark plug lead and no. 1 injector plug is back on. But once I remove one of the 2 it idles and revs smooth!!!!!

Lacks power up hills but straight roads downhills drives normal.

Puzzled

Appreciate any input

[Julien]

Sounds like cyl1 isn't making compression, perhaps a bent valve.

Check to make sure it's getting spark first pull spark plug lead off and hang a spark plug in there. make sure to ground it.

Injector can be a little harder, you can try swapping it out or using a test light to make sure it's getting power.

Lastly, do a compression test.

[slum dog]

Yes I was leaning to burned valves but compression was fair across all cylinders. I went back through the wiring cause I did redo engine harness, I messed up. The coil pack wiring and injector wiring is same colours so I had them swapped around and that fixed the issue.