Thread: 3UR-FE Swap
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Old 12-25-2017, 01:32 PM   #37
BRX
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Join Date: Jul 2015
Drives: Toyota GT86
Location: Abu Dhabi, UAE
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It's been a couple of weeks since my last update.

The car is back on it's wheels, we started wiring the ECU(s) last week and after 3 long days of diagrams and dissecting harnesses it finally fired up!

However we have discovered a few things along the way. Even though the diagrams look similar with the exact same abbreviations and wiring, some stuff did not work between the two systems.

The throttle pedal didn't work even though it shares the same plug as a Tundra pedal and all the wires have the same tag name. Fortunately a tundra pedal did work immediately and it has the same exact mount to the firewall. It's currently being modified so the pedal is in the same location as OEM.

The fuel pump also didn't want to cooperate. Hooking it up to the Tundra ECU didn't work. With the 86 ECU it primed but didn't pump fuel as the 86 ECU doesn't know when the engine is running. So now the fuel pump stays running with the key in ignition.

The CAN BUS translator seems to have been dead on arrival. Another one is on the way so the dash and power steering will have to wait.

Now that everything else is wired up, hooking up teachstream to the OBD port the software recognizes the engine ECU from a 2007 Tundra. Other than some emission and transmission related codes everything else is working as it should. This also means my local tuner can tune it as if it was a Tundra and delete all the codes mentioned above

We discovered a small oil leak in the crankcase but nothing crazy. At least we know we have oil pressure lol.

The car is a huge mess of wires at the moment so I haven't taken any pictures recently (yes a bigger mess than the picture below from last week). Here is a short video of it firing up for the 3rd time before rigging up the fuel pump. Enjoy the open headers

http://cloud.tapatalk.com/s/5a41434f...034621_380.mp4


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