The product is a Green Label Control Module (DME ECM PCM ECU) for a 92 BMW E36 2.5 325I. It is an OE spec part manufactured by BMW in Germany, with the manufacturer part number 0 261 200 403 and other ...
After "tunning" adjusting air/fuel ratio maps inside EPROM if the checksum is wrong the engine light stays ON. To fix the engine light you will need to correct the checksum. Based on the article found ...
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