please help my infiniti i30 wont start

[mariolizarraga]

hello i have an infiniti i30 year 2001 and it has 86,000 mi well it all started when one of the cables in the engine compartment some how came loose. it cought on fire and fried my ecm. me and my father inlaw replaced the burnt cables. well i bought a used ecm and pluged it in so far nothing has happed my car still does that same it just cranks and doesent satart. the reason we came up with the ecm being fried is that when we try to start the engine thge check engine light does not come on everything else goes on but not the check engine light. does me ecm need programing even if its used and it came off another infiniti i30. or is that ecm busted too. please help me with this problem thaks

[TKE SigO 258]

Post in the Infiniti Online Mechanic.

You may get better results.

[driftingmy240sx]

you have a "chipped" key, so it needs to be programed to the ecm before the car will start.

[boriquaS13]

Check all your fuses.