88 4x4 wont start

My 88, V6, 4x4, standard trans will not start. When I crank the engine has no spark to plugs, no fuel to carb. Read manuel went to the computer under passenger seat to read trouble code. It has power but led lights do not flash for code read no matter what I do. Any ideas?

to read the codes

put the key to the run position and the engine not running.

flip the ecm switch on ..

the lights will blink 1 time then twice then 3 times then 4 and finally 5 times and then repeat..

these are the modes..

after it blinks three times (stored trouble codes) turn the ecm switch off and then record the blinks..


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get a new ecu believe me had same problem with my 89 v6 4x4 auto
changed it with a used ecu boom started right up