[leonard]

Here is some fuel pump current

[leonard]

Thanks for your reply
I have recently returned to auto Electrics after about 18 years from it, but I have being working as an electronics tech sense. The electronics on a auto don’t give me a problem, but the software end is hard to get any info on
I might have to bring it in to a Opel Dealer in the end (I hate to lose work)
it would also be nice to know how to program these ECU modules IE What Software is best and what type of interface to use
I know we have EOBD and the USA have OBD2,
but for the most part they are the same
not too sure about the security systems and other modules
but again, thanks

[leonard]

Thanks for your reply
I have recently returned to auto Electrics after about 18 years from it, but I have being working as an electronics tech sense. The electronics on a auto don’t give me a problem, but the software end is hard to get any info on
I might have to bring it in to a Opel Dealer in the end (I hate to lose work)
it would also be nice to know how to program these ECU modules IE What Software is best and what type of interface to use
I know we have EOBD and the USA have OBD2,
but for the most part they are the same
not too sure about the security systems and other modules
but again, thanks

[leonard]

I can get one, but I need to know the procedure to programming it,ie do I send it to the main dealer ship

[leonard]

I can get one, but I need to know the procedure to programming it,ie do I send it to the main dealer ship

[leonard]

Thanks for your reply, I have already done this test and all the grounds and supplies are correct ie under 100mV and 12V at the supplies
but the driver switched ground is the only one that is changing
I must post the scope capture of it changing

here is picture of moment of shut down, as you can see the coils are still firing

[leonard]

Thanks for your reply, I have already done this test and all the grounds and supplies are correct ie under 100mV and 12V at the supplies
but the driver switched ground is the only one that is changing
I must post the scope capture of it changing

here is picture of moment of shut down, as you can see the coils are still firing

[leonard]

If there is 12v at one side of the relay control, it goes thru the coil of the relay and appears as 12v on the ground side, until the driver in the ecu switches the ground end of the relay to ground (0V) this creates a magnetic field in the coil and the contacts in the relay closes
but the driver in the ecu has a thermal problem
I have the ecu apart, when the driver is faulty, I spray freezer on the ecu pcb, this clears the fault
shorting the ground end of the relay is only doing the job of the ecu

[leonard]

If there is 12v at one side of the relay control, it goes thru the coil of the relay and appears as 12v on the ground side, until the driver in the ecu switches the ground end of the relay to ground (0V) this creates a magnetic field in the coil and the contacts in the relay closes
but the driver in the ecu has a thermal problem
I have the ecu apart, when the driver is faulty, I spray freezer on the ecu pcb, this clears the fault
shorting the ground end of the relay is only doing the job of the ecu

[leonard]

a good tool to desolder components is the sc-7000 . its got a built in vacuum pump to lift the solder, available in the USA

[leonard]

a good tool to desolder components is the sc-7000 . its got a built in vacuum pump to lift the solder, available in the USA

[leonard]

files uploaded

[leonard]

files uploaded

[leonard]

I agree,
forums are ok, if you come read them at the right time,

[leonard]

I agree,
forums are ok, if you come read them at the right time,

[Author]

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