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Michael Pauling

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Posts posted by Michael Pauling

  1. Hi guys, iv picked up on this again after a bit of a break.. I am having issues with the main power wiring.. I thought by using a loom adaptor i would be able to use the pinouts, but i seem to have misunderstood some principle with the main power. I wired the link power supplies to pins 25 & 12, which i thought were the 'on' position power sources from the key. I also wired the engine control relay, pin 38 to an auxiliary output (injector 7), as i thought this would be used for the power hold? All that happened when i tried to connect to the link for the first time, was the engine control relay buzzing on and off, and the link not starting properly.. I put a volt meter across the various bits, and it seems like the engine control relay to the factory ecu (pin 38) is 12v constant, which i guess means the relay is connected all the time at the moment, and pins 12 & 25 only seem to supply 2-3volts at present (link unplugged) Am i missing something here? Do i need to make pin 38 the main power supply to the link, and use pins 12 / 25 for an aux? I have found that most of the car relates fairly close to the evo link info, if that helps anyone shed some light.. Any help would be much appreciated :)

  2. Awesome, thanks for the help! Iv got a (hopefully) decent looking loom adaptor on my bench now.. One other question if i could trouble you please.. With the factory ecu there are two main ground wires, sensor ground (Pin26 and injector ground Pin13) As far as i can tell from the wiring diagrams i am looking at they both are connected in places, and go back to the main earthing points, which confused me a little bit.. Is it okay for me to use these to ground the Link Ecu? or should i be connecting the sensor ground pin to one of the green sensor grounds on the link if i am thinking of using the factory loom for knock and angle sensors? Thanks again for the reply, iv been teaching myself as i go for a few months now, and i think its 99% ready for a test soon :)

  3. Hi all, I am just working through the process of wiring an extreme to replace the ecu in my 1998 Legnum VR4 and have a few questions i would love a hand with.. I have the wiring diagrams for my car, and have been working thorugh it with the information on here for the Evo 4 plug in stuff, as the ecus and pinouts are similar, i am making a loom adaptor from the factory ecu plugs. A few things i havent been able to get my head around as yet are: 1) Alternator. The factory ecu in my car is connected by two wires to the voltage regulator. If i am removing the factory ecu do i need to configure the link to read the voltage and output a signal to the alternator? I dont quite understand what the ecu is doing in that respect.. 2) Ignitors. I am assuming that since i am making a loom adaptor i wont be needing to add an aftermarket ignitor pack? Or is are the ignitors built into a factory ecu? 3) Knock, Crank and Cam sensors. Is it acceptable to wire these to the factory harness? There is a sensor ground as well as the various sensor wires in the pinouts, but i am not sure if it is better to try and run the premade loom from the link instead? Dont want to cut any corners, but a lot of the engine bay has to come apart to get to some of the sensors :) 4) Base map / initial start. I am assuming there is no base map available for the 6A13, however through the Evoscan diagnostic stuff i have got copies of some of the fuel trim stuff from the factory computer. Is it possible to turn this into a base map? Or am i better off taking it to a tuner and leaving all the inital stuff to them? This is all pretty new to me, so any advice or other things i should be looking at would be great! Thanks, Michael.

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