TRW EMS2 original ECU files

Vehicles with a TRW EMS2

TRW EMS2 files are listed for 10 makes and 50 models, the most listed first.

How to identify your TRW EMS2 file

How the numbers on this ECU type start:

• HW 20995… 44 of the 283 files with a HW number, 16%
• HW 20977… 40 of the 283 files with a HW number, 14%
• SW 6010… 28 of the 229 files with a SW number, 12%

A HW number alone does not pick the file: 21300122P03 carries 16 SW versions here. Compare both numbers with your read.

Where do I find these numbers?

TRW EMS2 map packs in figures

27 packs, 5 to 31 maps each, median 24.

Named by the most packs: Limiter of Maximum torque 93%, Phase of injection 85%, Turbo pressure 81%, Injection correction 74%, Torque request during take off condition 70%, Limiter of Turbo pressure 67%, Idle engine speed f(ECT) 67%, Limiter of Maximum torque f(APS) 67%.

All TRW EMS2 HW and SW numbers

144 HW numbers and 154 SW numbers, by make. Beside each HW, how many SW versions it carries. A number opens a file that shows it.