Manuals & Downloads

ME100/ ME221 / ME300 / ME442 Engine Management Systems

For our ME100, ME221, ME300 and ME442, you can access the manuals directly in MEITE for instant help, or you can view an online by clicking below:

If you prefer a downloadable PDF, please click here.

Online Version last updated March 2019.

ME221/ME442 Plug-In Hardware Install Guides:

Note that GEN1 Manuals are for the BLACK Plug-Ins. GEN2 manuals apply to the 2019+ WHITE Plug-Ins.

MEITE Tuning Software V1.9.42 (Updated 20/08/2019) (Win 7, 9, 10) – FW version newer than 1.8.4 (see ‘note’ below)
- Automatic DEF download for new ECU versions
MEITE Tuning Software V1.9.24 (Updated 13/03/2019) (Win 7, 9, 10) – FW version up to 1.8.4
FTDI Serial -> USB Drivers

NOTE: Firmware version information can be obtained from the Help -> About box in MEITE, while connected to the ECU.

MX5 NB and NB FL (1999-2005) ME221/ME442_3.4.1
ME442 3.5.5-2 Firmware Pack – MX5 (except NB & NB FL), S2000 and EP82/EP91 Plug-In Boards (Updated 6.01.2020)
- Changes compared to 3.5.1:
  - RPM Limiter through GPTs
  - Denso 24+3 (S2000) Ignore Cam after sync option
  - Improved calibration routine for CJ125 Bosch chip
  - [FIX] Fix Closed Loop Boost control initial duty
ME442 3.5.5-2 Firmware Pack – Wire-In (Updated 6.01.2020)
- Changes compared to 3.5.1:
  - RPM Limiter through GPTs
  - Denso 24+3 (S2000) Ignore Cam after sync option
  - Improved calibration routine for CJ125 Bosch chip
  - [FIX] Fix Closed Loop Boost control initial duty
ME221 Gen2 (White boards) 3.5.5-2 Firmware Pack – MX5 (except NB & NB FL), S2000 and EP82/EP91 Plug-In Boards (Updated 6.01.2020)
- Changes compared to 3.5.1:
  - RPM Limiter through GPTs
  - Denso 24+3 (S2000) Ignore Cam after sync option
  - Improved calibration routine for CJ125 Bosch chip
  - [FIX] Fix Closed Loop Boost control initial duty
ME221 Wire-In 2.2 Firmware (Updated 10.09.2019)
ME221 Plug-In Gen1 (Black boards) 2.0_RC33 Firmware Pack (Updated Sept ’17)