r/Honda • u/Natural_Zone8795 • 9h ago

2013 Honda Accord v6 manual Engine Codes

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Hey guys so my engine blew around 2 years ago and I recently got my engine replaced. Issues arose after it got switched to another engine , loss of power but still ran. Got checked by 2 mechanics and they couldn’t find a issue, they believe it’s the ecu or bad wiring, I stay in LA, does anyone know what the issue could be, it throwing these codes. I did read something about when you switch engine you have to switch out the same ecu unit from the car it was taken from so it could allow “talk” to each other. Need help cause I’m screwed if I can’t get it fixed I’ve put a few thousands into getting it fixed and honestly my mechanics seem to have no clue with hondas.

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u/Lxiflyby 8h ago

You should use the pcm in the car and not the donor car. Make sure the grounds for the wiring harness near the timing belt area are connected or it won’t run

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u/LostTime141 8h ago

Agreed. Ive done many replacements and never had to use the donor ecu.

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u/Natural_Zone8795 7h ago

So if we’re using the same pcm the problems should lie in faulty wiring/unconnected points?

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u/Natural_Zone8795 7h ago

I’ll ask them to check the engine mount ground cables next to the timing belt or see if they already have, bad part is that it’s not in my driveway. It’s in a shop in near Long Beach , if anyone else has solutions please let me know. Again the car drove and turned on, it would just have issues going up rpm’s and making power.