why wont computer come on or work

Asked by Oct 14, 2015 at 11:41 PM about the 2004 Toyota Camry

Question type: Maintenance & Repair

replaced engine and went to start car and computer wont come on nor will it
start? checked all wiring

2 Answers

40,595

If the engine isn't the same like a 5S-FE, (4 cyl.) or a non compatible year, the new engine will not run unless you take the wiring harness and computer out of the donor car and put it in your car.

He took old harness off old motor and put on new motor still no juice and no check engine light on

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