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Any One Know Of A Good Electronic Repairer?

Cubes

By Cubes,
in South Australia

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Cubes Grand Master

Cubes

Posted
  • Author
Posted

I did something stupid... Very stupid.

It was a little dark and hooked up the new battery reversed.

It touched sparked and I instantly pulled it off.

She blew the main 75amp fuse and a 10am fuse in the car, the 10amp fuse has something to do with the dash lights as they dissapeared but now are back after replacing the fuses.

There's no pfc display and no fuel pump prime also.

Car spins over but she doesn't fire.

I've noticed there's no more relay click down near where the ecu resides, I have a bad feeling its the ecu.

Damn friggin stupid me.

sinistaGTR Grand Master

sinistaGTR

Posted
Posted

Hey mate.

OUCH lol.

have you checked all the fuses near the steering wheel. possibly there may still be a fuse blown there thats why your fuel pump prime may not be hapening and no display on your power fc. double check all of them. if not doesnt sound good. but all your fuses are there to protect that sort of short. if not maybe your ecu. but yeh double check all your fuses and let me know how you go.

cheers dan

Cubes Grand Master

Cubes

Posted
  • Author
Posted

Will double check.

I did rip them all out one by one but have plenty of time on my hands so I will do it again.

I've opened up the ecu and nothing appears burnt, I've looked real closely at everything and it all appears aok. Doesn't mean it is though. :)

Why don't car manufacturers slap in a big arsed diode to protect the stupid. argg. :dry:

sinistaGTR Grand Master

sinistaGTR

Posted
Posted

yeh i know.....

and yeh doesnt mean the ecu isnt fried, but a power surge like that should fry something enough to make it visble. but i have blown a fuse once before and power fc wouldnt turn on, no fuel pump, thats why i said that to start with. but yeh double check it and let us know,

goodluck dan

Cubes Grand Master

Cubes

Posted
  • Author
Posted

I've taken a heap of pictures of the pcb so if your interested I can email a whole heap or how ever.

After a little looking I came across whats circled in red.. I'm quietly confident this would have saved the PFC.

As you will know if you read the previous thread the RB20DET PFC is nothing more than an RB25 PFC thats had a couple of ecu pinsouts relocated.. Which is a well known wiring mod if you drop an rb25 in to an R32. :)

post-382-1151670879.jpg

Cubes Grand Master

Cubes

Posted
  • Author
Posted

I spotted this while going through a heap of photo's I took.

Hrmm.. by eye it looks as if a machine did the cut, using the camera it looks like its blown. ?

What does this look like to you?

Even if it is the throttle switch power supply (pin 57) I don't understand how that will simply stop the pfc powering up, but yes.. Most likely another fuse I missed.

post-382-1151682124.jpg

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