Ok I'll look to remove the chip. Any recommendations on a good eprommer to use?
The car is a 1993 BMW 325i has the M50B25TU motor in it.
I have a spare DME now, so can check that one also.
Search found 4 matches
- Sun Aug 23, 2020 12:28 pm
- Forum: Bosch
- Topic: Bosch Motronic M3.3.1 - 1211 Error
- Replies: 8
- Views: 8644
- Sun Aug 23, 2020 1:43 am
- Forum: Bosch
- Topic: Bosch Motronic M3.3.1 - 1211 Error
- Replies: 8
- Views: 8644
Re: Bosch Motronic M3.3.1 - 1211 Error
Ok that makes sense, is there an easy way for me to check my checksum? I would prefer to remove the error if I could easily. That way when the check engine light comes on I know it's for something serious!
- Thu Aug 13, 2020 1:29 am
- Forum: Bosch
- Topic: Bosch Motronic M3.3.1 - 1211 Error
- Replies: 8
- Views: 8644
Re: Bosch Motronic M3.3.1 - 1211 Error
I've cleared the code a few times by disconnecting the battery, but I'll try your method to. The code comes back after 2 - 3 starts.
No haven't tried a different bin file or chip, how could I go about trying either?
No haven't tried a different bin file or chip, how could I go about trying either?
- Wed Aug 12, 2020 11:41 am
- Forum: Bosch
- Topic: Bosch Motronic M3.3.1 - 1211 Error
- Replies: 8
- Views: 8644
Bosch Motronic M3.3.1 - 1211 Error
I've got an issue with a Bosch Motronic M3.3.1, it keeps throwing a 1211 error but the car starts and runs absolutely fine. Can anyone give me some tips or tricks on how to track down what could be causing it? The ECU itself doesn't appear to have failed as it is running fine, it seems like it maybe...