Opel Delco HSFI2.1 and HFSI2.5 difference

[daniersms]

Can anybody tell me the difference between the Delco HSFI-2.1 and HSFI -2.5 and are the interchangable

[Dunker]

I take it you are talking about Meriva v Astra G?

They are not compatible - even if the eeproms are cloned. As far as I can remember the fuel pump enable is different (one is pin 23 and the other is pin 24). Thats not the main problem though, the clocks on the HSFI 2.5 vehicle are fed by CAN bus through the body control module and on the HSFI 2.1 the clocks have seperate wires from ECU to just turn warnings on and off (unless it is K-Line, but either way, the clocks won't work).

[daniersms]

Oh yes I think you right it all make sense and with that being said one cannot use the 2.1 to make 2.5 ----shucks

[cristi_bv]

Hsfi 2.5 and 2.1 have the same hardware,only software difference. All you have to do is to write new flash and pair the ecu with car.It works 100%.On 2.5 you can't clone ecu by write eprom, must be reset and paired by op-com, tech2,etc.

[marusca]

more simple,clone eeprom with carprog,and clone flash with mpps.

[PierreTheron]

Anything in Sa is possible M8 .,, but it must be done with logic ..

[jmcartec]

I have done it past saturday, faulty car had a HSFI 2.5, then exchanged by a HSFI 2.1
next flashed the eeprom ( carprog) and also the flash (kess)
now i reset and program pin code at BCM and IPC and VOILA! running good

[drewdom]

Hi Guys this thread is 2 years old but can someone confirm that with 2.4hsfi and 2.1 is the same situation?

[volorucinski]

Hsfi 2.5 and 2.1 have the same hardware,only software difference. All you have to do is to write new flash and pair the ecu with car.It works 100%.On 2.5 you can't clone ecu by write eprom, must be reset and paired by op-com, tech2,etc.

Interchangeble. But i tried just transforming a 2.5 into 2.1. clone flash and eeprom and it works. From 2.1 into 2.5 i never tried. Are you sure it might work 100%? Thanks

[volorucinski]

Hi Guys this thread is 2 years old but can someone confirm that with 2.4hsfi and 2.1 is the same situation?

Nope, 2.4 is a xep. Will not work. There is another thread on dk where you can find explanations. Search hsfi 2.1 debrick. Good luck

[drewdom]

Hi please give a link here.Can't find (hsfi 2.1 debrick)

[volorucinski]

Sorry for delay. Here it is:

http://www.digital-kaos.co.uk/forums...2-1-debricking

[boskl]

Hello,

Can someone tell me if I reset the hsfi 2.1 ecu with opcom and then write the flash from a hsfi 2.5 in the ecu and then activate the ecu with new pincode again will this work.
Or do you have to copy the eeprom content also?

Regards.

[cristi_bv]

It will work.

[volorucinski]

Hello, anyone transformed hsfi 2.6 z16yng into hsfi 2.4 z16xep or viceversa? It's the same platform, it migjt be workimg, but i have never tried... Iguess... I really don't remember, to be truth )