Reading Bosch ME 7.3H4 Hibrid (ecu Fiat Punto 1200 cc 16-valve)

[Backgroop]

I have seen that the pin 17 does not have listed. Accidentally connect it to the +12 Volt?

no you're not wrong, I forgot I the pin 17 also goes to +12 positive, where mistakes you and colleagues in the k-line to pin 2 of the connector b, while you have to connect pin 2 of the connector is the same connector that you connect the +12..

[matech]

The eye that if levi throughout the mass, to frustrate even the 12v left on the pin to boot!

You have to leave the ground attached to it, and make two groups of positive and 1 wire for the pin boot, and the remaining below the switch. all under further switch clearly.

When you give power to all the positive with the first switch, then with the second, you can remove the 12v only with the power supply, leaving the wire for the boot powered.

[Backgroop]

The eye that if levi throughout the mass, to frustrate even the 12v left on the pin to boot!

You have to leave the ground attached to it, and make two groups of positive and 1 wire for the pin boot, and the remaining below the switch. all under further switch clearly.

When you give power to all the positive with the first switch, then with the second, you can remove the 12v only with the power supply, leaving the wire for the boot powered.

hello matech watch that the pin of the boot of that? pin 2 of the connector goes to ground this? to negative, or on the carcass and clothing etc in turn is connected to the negative or the negative direct ( scheme mass of power ? the negative)

[maurof650]

Everything is ok (thank you), I was able to read it. Since I still have everything connected if you want to try, disconnect the power supply to the control unit through the mass, cos? let's see what happens and it also takes away this doubt.

[matech]

I had a little confusion, the rooster on a type of ecu's said to give 12V and not mass to boot. I went to memory.

The fact remains for? that according to me if levi the entire mass of the boot does not

[duca]

so in the end it was the cock that was said to give the 12v and not the mass for the boot

[maurof650]

hello matech watch that the pin of the boot of that? pin 2 of the connector goes to ground this? to negative, or on the carcass and clothing etc in turn is connected to the negative or the negative direct ( scheme mass of power ? the negative)

I did the test to read by removing the power supply through the ground and goes into boot without problems. I also compared the two files that I obtained by acting on the positive and on the mass and the maps are perfectly equal.

[matech]

I had confused the schema of another ecu

on that ecu can? also work to raise the mass, even if I don't find that very sensible

[maurof650]

the vab?, the test I made it cos? at least we have raised this doubt.

[Backgroop]

the vab?, the test I made it cos? at least we have raised this doubt.

I am pleased that will help of these I've done a lot, first of all a point 1.2 16v where I removed the injectors and I mounted two two-barrel carburetors, leaving the me7.2h4 to manage the deposit and other things