1996 jeep cherokee cranks but wont start
no feul pump or spark no check engine light will not communicate with scanner
installednew computer still nothing
Have you check the main relay,and all fuse,s?
yes all are good
The computer/ecm you installed match the one that was replaced,meaning ,year,make model,and ecm#?
That sounds like you have lost either main power or ground, possibly both, to the ECM itself, get out your wiring diagrams and start tracing down the circuits. Take your time with this, you will need a good ohm meter and some patience. HTH
And just to add to,TS,and my comment,s,and just a shot in the dark,but could be the problem,is your key,a chip key,if so may be bad.
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