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Check all engine grounds ,make shure all are connected, remove batt cables for 30 seconds to reset codes on computer ,rehook cables and crank engine, check to see if check engine light comes on again, if so check all pigtails in wireing harness for bad connections, or broken wires, the use of an ohms meter is great for testing broken wires, if unsucessful take to autozone have obd connector scanned for free, replace part called for, start over by resetting codes,

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Q: Check engine light is on in 98 rodeo just had re-man motor put in it 2 days ago any ideas?
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