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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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02-23-2020, 12:48 PM | #1 |
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Ecu relean
This whole thing started with a auto to manual swap. Changed the dash and engi e bay harnesses and the ecu and bcm.
Im really struggling to get this used ecu and bcm to take a key relean or flash. I have used the 4 and 13 pin connection with the 30 minute wait with key on. Without success. Can someone help me with what im doing wrong. I dont have a jump pack so im hooking a battery charger to the battery Thanks |
02-23-2020, 01:05 PM | #2 |
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what s the problem you are getting?
after the marrying you have to reflash the ecu with a compatible rom or you have trouble |
02-23-2020, 02:40 PM | #3 | |
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Quote:
After the 4 and 13 pin jumper and 30 minutes of communication, the car still only tries to start for a short jog. then an alarm under the hood goes off for a 30 seconds. I checked the battery in my key fob and it is good. I'm getting ready to try it again. This time ill stand by the battery and monitor the volts. |
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02-23-2020, 02:41 PM | #4 |
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can anyone tell me where the immobilizer is and what it looks like?
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02-23-2020, 04:47 PM | #5 | |
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Quote:
the ecu marrying won t change it. you gave few information, do you have a new ecu, or the old one of yours? if you have an auto calibration with a manual engine it won t start. if you have a new +my17 tune in your ecu in a old engine/car it won t start So you can t reflash it? what are you using to flash? |
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02-23-2020, 07:01 PM | #6 | |
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Quote:
My key battery is at 2.85 volts. It's a 3 volt battery. Is that low enough for the key relearn to not work. This is a smart key system. So all the harnesses are from a smart key car. I'm not sure about the ecm and bcm. I assume it can be flashed to correct that. I am just using the 30 minute relearn procedure. According to others should do the trick. |
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