Multiecuscan

Hi at all, I have a Fiat Punto HGT 1.8 16V , electronic Hitaci. i have a interface bluetooth ELM327 1.5 and when I connencted the interface to OBD2, in Multiecuscan ther isn't che comand F7 of Adjustments.
Instead, trying all on FIat BRAVO 1.4 Turbo 16V all is ok.

Why thi problem?

Thank you for help me.

Different ECUs supporting different functions and available parameters to read and/or set.

The Hitachi MPI is an older ECU.

The Bravo 1.4 Turbo 16V uses a Bosch Motronic ME7.9.10 ECU

Ok. how can I atture function? I must reset the parameters

What parameters are you trying to reset?

As far as I know the only things that can be easily reset on old ECUs is the "ecu learnt driving parameters".

This is done by disconnecting the battery for a period of time, reconnecting and then following a procedure.

ONE procedure for SOME older ECU is.

1) start car from COLD and allow to idle till engine fan cuts in and out twice
2) fast idle car at around 2500rpm for 5 to 10 minutes
3) allow car to idle for another 3 to 5 minute
4) switch off ignition

NEXT time you start the car drive it normally and gently. NO hard acceleration or excess RPM use.

I don't know what the recommended process is for the Hitachi ECU but doing the above will cause no harm.

I want to reset all parameters Adjustments ( short and long corrector, ecc...) I have disconnected the battery but reset isn't ok..... There is a software for reset Adjustments for thi electronic?

riccardo1185 wrote:I want to reset all parameters Adjustments ( short and long corrector, ecc...) I have disconnected the battery but reset isn't ok..... There is a software for reset Adjustments for thi electronic?

I personally don't know any more information other than I have provided. Maybe somebody else on this forum can provide additional information.

Nick /////

OK. thank you.