spring thing is magnetic coil
Welldiagram from Toyota dealer, gray box in green
gray box postioned behind fuse block
point open, fuel pump off
point closed, fuel pump runs. coil needs juice to make electro magnet .juice comes from gray box.
EFI under hood
​​​​​​​are you sure of no spark, pull plug wire insert good spark plug and ground plug to body somehow, crank it. look for spark. if good do you get fuel. my 93 22re efi. runs good alot of times then out of the blue she wont start. cranks, spark. but no go. checked for fuel nope,went though all the test. ,then pulled out the EFI relay removed plastic cover exposing guts. becareful not to damage the fine wires on electro coil. with cap off reinsert, take tooth pick, with key in full on position,close the points on relay. this should feed juice to fuel pump,have someone turn key to start. if it runs let go of key, let point free ,if it opens theres no juice comming to coil. 7.5fuseon block in truck, my problem is at driverside kick plate behind fuse block is gray box (secret relay) found out one day while driving, I hit the block w/foot and truck stopped running hit it a couple more times and continued to run. always nice while driving. perhaps this helps. I hope the systems are simular. I took pics will try to attach.
​​​​​​​When you have the EFI relay out turn over, on mine 2 brass prongs feed juice to coil. use insulated clip w/wires attached,apply to brass prons take end of wire touch (QUICKLY/MOMENTERALY) to battery post if coil is good point will close.
What works for me may not be good for you. I've had to tap the gray box at times to get truck to start, if you dont kknow what you're doing bring it to some one who does, after all I'm a back yard nutbuster.