S13 Spark tested now dead????

[racingrevolution]

ok here is the low down I was teaching my cousin how to do a cylinder power balance test with the scan tool (the test disables the selected injector) while doing the test he pulled one of the plug wires out car ran like crap turned it off went to restart and dead hasn't started since.

I've gone through the wiring 4 times, checked sensors 4 times, used the flow charts in the FSM 4 times, swapped ECU, replaced diodes and resistors. used the good old beat the relay trick... no dice.....

the only thing dead is the taco meter but with the scan tool I see rpm and I see everything in spec key on and also while cranking. all sensors are working and reading

WORKING GOOD
coil - tested and checked with new one
wires - new
cap - new
rotor - new
plugs - new
power transistor - swapped with know working
spark - great
dizzy - reman
cam/crank signal - in spec
fuel pressure - in specs
injector ohm - in specs
fuel entering cylinder - perfect
compression - 170psi all cylinders in specs
injector pulse - all firing
power wires to ecu - batt volts key on
Ground wires to ecu - in spec
signal wires from dizzy - in spec
all relays - in spec
ecu - tested with known good

Please I need your help im going nuts..........

[ncampos976]

so you have fuel, spark and compression?, if all those are good, plugged cat??

[racingrevolution]

Exhaust is great.

Update:
Started testing egi circuit found no continuity from
ecu pin 109 to crank sensor, maf, and ecu pins 38, 47.
But there is continuity from ecu pin 109 to bat+ for the
Injectors. So there is a short some where from the fuse
Box by the battery and where the harness stops at the fire
Wall passanger side.

Ill check and test tomorrow