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VS ECU dodgy modifications

danbran

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Hi, i just pulled apart my ECU for the firs time to replace the memcal! and came across this! i knew someone before me was dodgy with wiring but not this dodgy! he has linked the two black wires together and a 3rd wire connected that isnt going anywhere! (the green one)
now my guess was that one off those black wires was a faulty ground so he linked the other one to it to fix the faulty ground assuming that they are both grounds! thats just my guess! but the engine runs fine and has done for ages! just need someone els's opinion on what this is about! cheers! 11122318_943110325748956_36563920_n.jpg11721984_943110355748953_1061009145_n.jpg
 

Pollushon

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Hard to see what's what with those pics mate. I would guess you once had an auto in the ute.

Here's your pin-outs to figure out what they were trying to achieve (post #4 pic 5 and down).
 

mickVS84

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I had this in my vs sedan. People say it helps earth the ecu better or something. But i think its a load of crap cos my earth wire burnt out but thats just my thought mate
 

ephect

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Could be o2 earths, but hard to see
 

Bowen

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Have done the O2 earth fix on mine but it's been ages but that's what it looks like! But should be earthed properly not just one wire floating away in the breeze!
 

chargedvx6

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If the green wire goes to pin B10, chances are it's been mafless tuned in the past but converted back to stock MAF. Black wires are just earth so can link em all and same ****
 

VPRob

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Could be o2 earths, but hard to see
That was my first thought too, in which case it's not as dodgey as the Holden factory fix for the O2 sensor.
 

danbran

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Thanks a lot ill re do it just properly this time
 
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