Who knows about V/S40 ECU's..?

Like a fool I bought an upgraded ECU (~220-230BHP) for the V40. I was 't going to tell anyone until I made it to the strip to beat Jaynebabe (again). However of course being Volvo the ECU serial number doesn't match, therefore it doesn't work.

The ECU came out of a 2001 S40 T4 manual which is the same as mine apart from mine being a V40, but the ECU numbers are(working from memory) 263 and 836... (I'll correct them later if they are wrong).

Anyway regardless of the ECU numbers has anyone got any details of what ECU fits what? Does the potential trim level make a difference?

You can get 235bhp approx. by just adjusting the actuator by 4 turns from standard and the afr`s are correct at 19psi because of the intelligent EMS 2000 fuel system on the `98 T4 1855 but this is about it`s limit. The ECU on this model has no cut out limit for boost etc.

You don`t say your engine code for the 2litre ....T3 / T5 etc. The T3 has a cut out or failsafe for boost but i don`t know about the T5 coded engine but you have to fit like for like as the ph 2 has more boost sensors for control because of the more fragile nature of the engine...HG , split liners.

The fuel system is still EMS 2000 but allows for more boost control because of the multitude of sensors.

Here is a list of ECM for the X40 range:

VOLVO S40 20L 16V SEDAN CHK:723C SIEMENS S113727101H+gnc
VOLVO S40 20L 16V SEDAN CHK:C78F SIEMENS S113727101J+gnc 30864276-0A VOLVOS~1STD 2792
VOLVO S40/T40 20T 16V (Mex) Simos 32 CHK:2257 SIEMENS 29F400 S110921003
VOLVO S40/T40 20T 16V (Usa) Simos 32 CHK:A817 SIEMENS 29F200 S110606001 S108454201-F0
VOLVO S40/T40 20T 16V (Usa) Simos 32 CHK:DB9D SIEMENS 29F200 S110606001 S108454201-G0
VOLVO S40/T40 20T 16V CHK:2BEB SIEMENS 29F200 S108447001E0 S108454205B0 VOLVO~56STD 4407
VOLVO S40/T40 20T 16V CHK:3F2E SIEMENS 29F200 S108447001E0 S108454005E0 VOLVOT~4STD 4354
VOLVO S40/T40 20T 16V CHK:4465 SIEMENS 29F200 S108447001D0 S108454005C0 VOLVO~52STD 4351
VOLVO S40/T40 20T 16V CHK:4A1B SIEMENS 29F200 S108447001E0 S108453002E VOLVOV~1STD 5240
VOLVO S40/T40 20T 16V CHK:A125 SIEMENS 29F200 S108447001D0 S108454004C0 VOLVO~54STD 4352
VOLVO S40/T40 20T 16V CHK:CAE9 SIEMENS 29F200 S108447001E0 S108454005F0 VOLVOT~3STD 4353
VOLVO S40/T40 20T 16V POT CHK:A54D SIEMENS 29F200 S108447001E0 S108454005E0 VOLVOT~1POT 4355

You know what I don't remember.
I believe it is a 1948cc engine(just had to check with "mycarcheck").

Looking at your sig. 14.5 secs for the 2001 V40 you must be T5 coded engine!

...nah that's just talent!!! Lol!!