compression test disabling fuel and spark. need quick help

[Macaroni_Sackaroni]

never did this before.
want to make sure im doing this right, im getting a little confused b/c the motor was swapped kind of weird on the truck.

fuel pump relay found inside cab. going to disconnect this.


and the thing with the red wire coming out of it, is the igintion coil and if i disconnect the red i disable the spark?


then i should be good to do the compression test.

[LTZ C20]

Yea that will work fine. Or pull the fuel pump fuse.

[Macaroni_Sackaroni]

Yea that will work fine. Or pull the fuel pump fuse.

 cant actually find the fuel pump fuse. i checked under dash nothing labeled fuel pump and nothing under hood. just a few random fuses next to the relay that are unlabeled. i suspect one of those are but i wouldnt know how to figure it out.

[LTZ C20]

Then pulling the relay is fine. It's the same affect.

[Macaroni_Sackaroni]

Then pulling the relay is fine. It's the same affect.

yup. cool thanks