Someone can tell me what exactly the original ECU 316i
Moderator: martauto
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RasgaPano
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Someone can tell me what exactly the original ECU of a e30 316i m40b16 ? I bought one about a week but do not know if it's motronic 1.7 or something older the car is 1989.
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Grrrmachine
- E30 Zone Wiki / Team Member
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It definitely isn't Motronic 1.7.
The number you want is here: http://www.e30zone.net/e30zonewiki/inde ... st_of_ECUs
The number you want is here: http://www.e30zone.net/e30zonewiki/inde ... st_of_ECUs
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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Brianmoooore
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It will be Motronic 1.3 and should have a 174 ECU.
1.7 was used in the same engine fitted in the E36, but the E30 316i touring still used 1.3, even through it wasn't introduced until after the E36 was using 1.7.
1.7 was used in the same engine fitted in the E36, but the E30 316i touring still used 1.3, even through it wasn't introduced until after the E36 was using 1.7.
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RasgaPano
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Thanks for the rapid responses , will try to put at the pictures of what I have , I know that the memory has been reprogrammed , and I apologize if my confusion but this sticker pasted an original BMW with the VIN and corresponds 318i 09-1991
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RasgaPano
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the memory is not the original because I have not , is there a scheduled and is a 27sf512
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Brianmoooore
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387 is indeed for a M40 1.8.
A 172 ECU for a M20B20 is the same as a 173 ECU for a M20B25, apart from the plug in 'chip'.
If the 'chip' from a 173, or an aftermarket 'chip' for a 2.5 engine is plugged into a 172 ECU, then it will be suitable for a M20B25.
I have no idea if this principle can be applied to M40B16 and M40B18 ECUs as well, but you say that there has been a software change to your ECU, so I wonder if it has been reprogrammed for a 1.6?
A 172 ECU for a M20B20 is the same as a 173 ECU for a M20B25, apart from the plug in 'chip'.
If the 'chip' from a 173, or an aftermarket 'chip' for a 2.5 engine is plugged into a 172 ECU, then it will be suitable for a M20B25.
I have no idea if this principle can be applied to M40B16 and M40B18 ECUs as well, but you say that there has been a software change to your ECU, so I wonder if it has been reprogrammed for a 1.6?