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Author Topic: BP Swap  (Read 45316 times)

chrispoe

  • Sr. Member
  • ****
  • Posts: 424
    • 91 BP Capri GT
Re: BP Swap
« Reply #75 on: August 31, 2021, 11:10:06 AM »

Here is the dropbox link for the schematics I have for the Escort GT and 323
https://www.dropbox.com/sh/ntxuujufy0a60p1/AABcBHGA9Hc9I7jjeeYBl2nra?dl=0


This second link is an excel file with multiple spreadsheets
The spreadsheets are:

The Capri ECU pinout
The Escort GT BP05 ECU pinout
A detailed wire description of the C211 connector under the dash that connects the engine wire to the body harness
Rough wiring guide for a BP wire harness install
Rough wiring guide for a OBD1 KLDE wire harness install

https://www.dropbox.com/s/p074pt620ammkd3/Capri%20ECU%20and%20wiring.xlsx?dl=0


« Last Edit: August 31, 2021, 11:12:44 AM by chrispoe »
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Pavelovable92

  • Newbie
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  • Posts: 9
    • Mercury Capri 91 BP Swap
Re: BP Swap
« Reply #76 on: September 01, 2021, 07:25:57 AM »

You are the best!!
Today, with your dokumentation, I was able to start the motor. Now I only have the little issue, that the motor is turning up to the limiter without touching the throttle.
But it runs! I'm so happy right now! And this "little issue" should be solvable in the near future. At least I hope so.
Maybe you have any idea, what the reason could be? I already disconnected the TPS, but there is no change.

Thank you man!
« Last Edit: September 01, 2021, 08:25:22 AM by Pavelovable92 »
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chrispoe

  • Sr. Member
  • ****
  • Posts: 424
    • 91 BP Capri GT
Re: BP Swap
« Reply #77 on: September 01, 2021, 08:49:18 AM »

The TPS won't do that. It's only purpose is to see if the throttle plate is closed to enable the idle valve or WOT run the engine in closed loop mode.

If the engine is revving up without pressing the accelerator pedal, that means air is getting by the throttle body. I would first disconnect the throttle cable and verify the throttle plate is fully closing.
« Last Edit: September 01, 2021, 09:22:19 AM by chrispoe »
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Pavelovable92

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  • Posts: 9
    • Mercury Capri 91 BP Swap
Re: BP Swap
« Reply #78 on: September 01, 2021, 09:14:40 AM »

The TPS won't do that. It's only purpose is to see if the throttle plate is closed to enable the idle valve and at WOT run the engine in closed loop.

If the engine is revving up without pressing the accelerator pedal, that means air is getting by the throttle body. I would first disconnect the throttle cable and verify the throttle plate is fully closing.

Ok so tomorrow I will take a look at the throttle, wheter it's open or not. And if the throttle is ok, then I have to look for an other spot, where the air could get into the motor.
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chrispoe

  • Sr. Member
  • ****
  • Posts: 424
    • 91 BP Capri GT
Re: BP Swap
« Reply #79 on: September 01, 2021, 09:22:56 AM »

The engine speed is controlled by the amount of air entering the engine. There should only be four ways for this to occur, the throttle plate, the idle speed adjustment on the top of the throttle body, the idle valve, and cold idle bypass valve. When the engine is cold, it should idle around 1500 RPM and slowly drop to about 850 when warm.


Few questions, when you changed the plugs for the TPS, VAF, and ECU, did you splice the wiring or did you pull the pins from the  original plugs and put them in the new ones.
Did you wire up the variable intake solenoid? If you didn't yet, I would use the Blue/Orange wire that went to the Barometric sensor(no longer used) and just extend it to the solenoid plug and connect the wire to C205-pin S. It activates around 5000 RPM and adds an extra 5 HP.
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Pavelovable92

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  • Posts: 9
    • Mercury Capri 91 BP Swap
Re: BP Swap
« Reply #80 on: September 01, 2021, 09:37:41 AM »

The TPS I have completely rewired by using the original plug.
For the VAF I used the original plug, I only changed the pins and spliced the GND on pin 2 and 3. And I cut off the yellow/green wire, as you wrote down in your dokumentation.
And the ECU is also completely rewired.

I didn't wire up the variable intake solenoid yet, because I don't quite know, where it is located.
« Last Edit: September 02, 2021, 09:13:05 AM by Pavelovable92 »
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Pavelovable92

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  • Posts: 9
    • Mercury Capri 91 BP Swap
Re: BP Swap
« Reply #81 on: September 02, 2021, 10:37:06 AM »

Update:
The mercury bp swap is now running perfectly! The throttle wasn't closed, so a little air got into the intake and the motor was running to the limiter. Now it is fixed and everything is running very well.
The next days I will get the wiring a little bit more beautiful and then the time is coming to take a ride!
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