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'91 Spi Relay Box Problems


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#1 pflpfl

pflpfl

    Starting My Mini Up

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Posted 22 May 2013 - 10:33 PM

Hello.

 

Few weeks ago my car decided to not start. Starter and solenoid died completely. First (rushed) diagnose was that they died and I replaced them. This did not help, so I turned my attention to ignition lock. Luckily, this time I did not rush to replace it straight away but checked it condition with multimeter and every position worked like they should. At this point I found the real culprit. I took the four relay box out of the car and instantly smelled the all too familiar smell of burnt PCB. 1st three attached pictures were taken at that point.

 

With help of my electrician friend we traced the tracks on PCB and soldered a jumper wire over the burnt spot. Car started right up and everything worked perfectly, engine felt healthy, fuel pump worked, everything seemed ok.

 

We went to evening cruise and at one point engine just stalled. I tried to restart it, starter motor still worked like it should but engine did not respond. I did not try to start it too long, two times 5 seconds. At that point I got out of the car and as I was heading to open the bonnet noticed smoke coming out of the engine. I found the relay box really smoking. Last two pictures were taken after this.

 

I know the relays inside the box are main relay, fuel pump relay, inlet manifold heater relay and starter relay. I do not know if it was my two attemps at starting the engine after the engine died that fried the relay box that badly or did it fry just prior the engine stalling.

 

Has anyone got any idea what could the reason for this? those boxes are quite expensive and I would not want to fry any more of them.

 

Also lately my clutch has not disengaged properly. Few pumps on pedal seems to help it a bit, so I believe it to be hydraulic problem?

Attached Files

  • Attached File  01s.jpg   35.61K   9 downloads
  • Attached File  02s.jpg   26.62K   7 downloads
  • Attached File  03s.jpg   38.21K   7 downloads
  • Attached File  04s.jpg   64.14K   16 downloads
  • Attached File  05s.jpg   58.8K   11 downloads


#2 pflpfl

pflpfl

    Starting My Mini Up

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Posted 23 May 2013 - 08:11 PM

I'm sorry, I just noticed there is SPI/MPI specific technical section. Could this be moved over there, please?






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