In fact people some items named differently…
ECU – Engine Control Unit. It is a name by functionality of vehicles electronic modules.
PLD – Pumps Lines Jets (German – Pumpe Leitung Duse) Name of fuel injectors type which controlled by module.
MR – Engine control unit (ger. MotorRegelung)
Currently we found 9 types of MR (PLD) module:
1. Type A1. Temic Euro2 PLD 1: (MCU C167CR, FLASH AM29F200AB, 1 EEPROM NM93C56)
2. Type A2. Temic Euro2 PLD 2: (MCU C167CR, FLASH AM29F200BB, 1 EEPROM NM93C66)
3. Type A3. Temic Euro3 PLD 1: (MCU C167CR, FLASH AM29F200BB, 1 EEPROM NM93C86)
4. Type A4. Temic Euro3 PLD2: (MCU C167CR, FLASH AM29F400BB, 1 EEPROM NM93C86)
5. Type A5. Temic Euro4-5 PLD: (MCU C167CR, FLASH AM29F400BB, 2 EEPROM NM93C86)
6. Type A6. Continental Euro4-5 PLD: (MCU C167CR, FLASH AM29F400BB, 2 EEPROM NM93C86)
7. Type A7. Continental Euro5 PLD: (MCU XC2287 (internal flash 768kB), 1 EEPROM M95640)
8. Type A8. Temic Euro5 PLD: (MCU XC2288H (internal flash 1600kB), 1 EEPROM M95640)
9. Type A8b. Temic Euro5 PLD: (MCU XC2287 (internal flash 768kB), 1 EEPROM M95640)