Hi, I'm having problems with my Delco ECU, I was able to get the bin file from the eeprom memory, I modified ignition advance and fuel maps. But the car doesn't start i think is because of the Checksum , does anybody knows how to calculate it ?
The ECU is a DAC ZZMN from a 98 Daewoo Lanos with light blue conectors, the eeprom it's a 27c256.
Delco DAC Checksum
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stalgic
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98 Daewoo Lanos 1.5
93 Lancer Glxi
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delcowizzid
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Re: Delco DAC Checksum
Post up your bin read
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem
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stalgic
- Posts: 3
- Joined: Mon Jun 14, 2021 3:20 am
- cars: 04 Audi A3 Quattro 8l with S3 Swap
98 Daewoo Lanos 1.5
93 Lancer Glxi
Re: Delco DAC Checksum
Sorry, here they are both the original and the mod one
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kur4o
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Re: Delco DAC Checksum
looks like the checksum is $4-end of file range and saved at $2. Simple byte sum, saved at 16bit value.
You can try this bin. i fixed it for you to confirm it is working.
You can try this bin. i fixed it for you to confirm it is working.
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stalgic
- Posts: 3
- Joined: Mon Jun 14, 2021 3:20 am
- cars: 04 Audi A3 Quattro 8l with S3 Swap
98 Daewoo Lanos 1.5
93 Lancer Glxi
Re: Delco DAC Checksum
Thanks a lot Kur4o it worked great.