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Old 09-13-2018, 02:27 AM   #1
Mastership84
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P12 swap help

So I recently purchased a p12 ECU and I went to remove the pt6 ECU from my Accord 91 Coupe and the bolt pattern on the ECU bracket is different I was wondering if I need to get a new ECU bracket from a Prelude or do I need to drill holes or put the ECU in without a bracket (I am new to Hondas and computerized cars in general) so if anyone has done the p12 swap some advice or pictures would be very helpful thank you very much!
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Old 09-13-2018, 06:14 AM   #2
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You can secure the P12 in any way you see fit, or don’t secure it at all. When I installed a different ECU, I just let it sit unattached. I suppose that could eventually lead to strain on the harness, though.
The easiest safe thing to do would probably be to hold the ECU to the plate with some zip ties.
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Old 09-14-2018, 12:13 AM   #3
ukemike
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Quote:
Originally Posted by deevergote View Post
You can secure the P12 in any way you see fit, or donít secure it at all. When I installed a different ECU, I just let it sit unattached. I suppose that could eventually lead to strain on the harness, though.
The easiest safe thing to do would probably be to hold the ECU to the plate with some zip ties.
Mine is in there with a combination of both. Some screws and some zipties. In your car it'll be hidden. No one will know. In my mine, who cares because, racecar.
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Old 09-14-2018, 01:40 PM   #4
210CodyB7
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P12 swap on 93 sedan

Did the swap on my cb7 with 2 fat boy tip ties. its not moving imo. bolt is back down n call it done.
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Old 09-14-2018, 03:45 PM   #5
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When I had the P12 in my car, I just let it sit there attached to the harness on the floorboard. It literally never moved, and the tuned P06 I have in there now also has never moved, and I track/autocross the car.

I would not worry about it if I were you. There is just no need to try and drill new holes to fit the Prelude ECU bracket down there.
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