Mazda 3 2005 1.6 ECU replacement
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Junior Member
Joined: Jul 2020
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From: Cape Town
Mazda 3 2005 1.6 ECU replacement
Hi. So i have a really weird issue with my car. Its a 1.6 Mazda 3 sport dynamic. South African version. (not sure if its different to other countries)
The car will not start when its cold. I have to heat the computer box with a hairdryer or warm a bean bag and leave on ECU cover first then it starts. Needless to say this is very irritating cause you not always near a power source.
Never the less, i sent the ecu to a repair shop, diagnosis was that it does not read the PCM.
I want to just change the entire box, but now learned that the serial numbers must match.
The numbers on my pcb is - 279721-2240
On the outside what looks like a QR code sticker is - 273742
Im not able to find this exact one. The dealership charges about $1200 (converted from ZAR) which is more than half of the value of the car.
My question is, is there any other serial that can work with this car or does anyone know how to fix this.
The car will not start when its cold. I have to heat the computer box with a hairdryer or warm a bean bag and leave on ECU cover first then it starts. Needless to say this is very irritating cause you not always near a power source.
Never the less, i sent the ecu to a repair shop, diagnosis was that it does not read the PCM.
I want to just change the entire box, but now learned that the serial numbers must match.
The numbers on my pcb is - 279721-2240
On the outside what looks like a QR code sticker is - 273742
Im not able to find this exact one. The dealership charges about $1200 (converted from ZAR) which is more than half of the value of the car.
My question is, is there any other serial that can work with this car or does anyone know how to fix this.
Junior Member
Joined: Sep 2023
Posts: 1
Likes: 0
From: JHB
Hi. So i have a really weird issue with my car. Its a 1.6 Mazda 3 sport dynamic. South African version. (not sure if its different to other countries)
The car will not start when its cold. I have to heat the computer box with a hairdryer or warm a bean bag and leave on ECU cover first then it starts. Needless to say this is very irritating cause you not always near a power source.
Never the less, i sent the ecu to a repair shop, diagnosis was that it does not read the PCM.
I want to just change the entire box, but now learned that the serial numbers must match.
The numbers on my pcb is - 279721-2240
On the outside what looks like a QR code sticker is - 273742
Im not able to find this exact one. The dealership charges about $1200 (converted from ZAR) which is more than half of the value of the car.
My question is, is there any other serial that can work with this car or does anyone know how to fix this.
The car will not start when its cold. I have to heat the computer box with a hairdryer or warm a bean bag and leave on ECU cover first then it starts. Needless to say this is very irritating cause you not always near a power source.
Never the less, i sent the ecu to a repair shop, diagnosis was that it does not read the PCM.
I want to just change the entire box, but now learned that the serial numbers must match.
The numbers on my pcb is - 279721-2240
On the outside what looks like a QR code sticker is - 273742
Im not able to find this exact one. The dealership charges about $1200 (converted from ZAR) which is more than half of the value of the car.
My question is, is there any other serial that can work with this car or does anyone know how to fix this.
2003 Mazda3 1.6 z6 manual
P 0610C
P 0610FF
Good Moring
im based in jhb and sitting with the same issues.
ive been to the dealer and had the try reflash the PCM.
ive Replaced the 93c56 eeprom and followed the instructions on another side and still sitting with the same issues.
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Jan 13, 2015 02:36 AM