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85 superbobbed 4runner(aka BURNING BENJAMINS)
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<blockquote data-quote="Chris S" data-source="post: 494695" data-attributes="member: 5757"><p>I won't get to in depth with what all I had to do on this wiring because it is wrote so well in the "wiring theory by the Monch" that I mentioned twice already in this thread. But I will say in general that plugs e7 and e8 on the ecu come from the engine harness and you will do nothing to them besides plug them in. Most of the wiring that's left to be done has to do with the gauge cluster itself and you will need the donors body harness plugs to complete this. I simple cut mine out from under the dash of the taco leaving around 12-14" of wire to work with. Depending on what all you want to function there will be between 10-20 wires that need to be found and made up to ecu plugs E5 and E6.( theses plug names may differ depending on what year your donor is) if your retaining your factory fuel pump setup you will have to address the cor relay to ecu and starter trigger wire which in all my readings seem to stump most folks more than anything else involved in this swap but again it's so well documented in the wiring theory read I mentioned that it was 0 problem for me! </p><p>I put the taco ecu back where the 22re one was located in the passenger kick panel. There IS enough length coming from the 3.4 engine harness but I will warn all that it's just enough. The good thing about returning the ecu to this location is most every wire that needs made up for the dash is already there in the recipients body harness where it formally plugged into the old ecu. Read your recipients ewd and body diagrams to determine what wires do/did what. A friend of mine loaned me his power probe which made this task easy to double check the "generalized" diagrams Toyota used in 85'. You could use a multimeter too but most of these wires are seeking ground and are hard to detect with it. The power probe was so impressive to me that I wouldn't give it back to him as the MAC tool man visits his shop weekly so I told him to order himself a new one and Tell me what I owed him! </p><p>As far as additional wires ran I had to run a wire in the engine bay from the engine bay fuse box to the new battery location, I tapped into ign2 (keyed power) at the original igniter location and ran it in with engine harness,starter wire comes from battery harness and ran in with engine harness, and I tapped in to new igniter (did this inside cab at ecu) for the tach signal with a wire and ran it to gauge cluster! The 3 wires mentioned in the engine bay were routed around the core support in wire way(black plastic conduit) and brought through the same hole in the firewall as the engine harness. I double wrapped the harness with rubber tape then electrical tape and moved the oem harness bracket to utilize a threaded hole in the fire wall to bolt it to.Pic of engine harness.</p></blockquote><p></p>
[QUOTE="Chris S, post: 494695, member: 5757"] I won't get to in depth with what all I had to do on this wiring because it is wrote so well in the "wiring theory by the Monch" that I mentioned twice already in this thread. But I will say in general that plugs e7 and e8 on the ecu come from the engine harness and you will do nothing to them besides plug them in. Most of the wiring that's left to be done has to do with the gauge cluster itself and you will need the donors body harness plugs to complete this. I simple cut mine out from under the dash of the taco leaving around 12-14" of wire to work with. Depending on what all you want to function there will be between 10-20 wires that need to be found and made up to ecu plugs E5 and E6.( theses plug names may differ depending on what year your donor is) if your retaining your factory fuel pump setup you will have to address the cor relay to ecu and starter trigger wire which in all my readings seem to stump most folks more than anything else involved in this swap but again it's so well documented in the wiring theory read I mentioned that it was 0 problem for me! I put the taco ecu back where the 22re one was located in the passenger kick panel. There IS enough length coming from the 3.4 engine harness but I will warn all that it's just enough. The good thing about returning the ecu to this location is most every wire that needs made up for the dash is already there in the recipients body harness where it formally plugged into the old ecu. Read your recipients ewd and body diagrams to determine what wires do/did what. A friend of mine loaned me his power probe which made this task easy to double check the "generalized" diagrams Toyota used in 85'. You could use a multimeter too but most of these wires are seeking ground and are hard to detect with it. The power probe was so impressive to me that I wouldn't give it back to him as the MAC tool man visits his shop weekly so I told him to order himself a new one and Tell me what I owed him! As far as additional wires ran I had to run a wire in the engine bay from the engine bay fuse box to the new battery location, I tapped into ign2 (keyed power) at the original igniter location and ran it in with engine harness,starter wire comes from battery harness and ran in with engine harness, and I tapped in to new igniter (did this inside cab at ecu) for the tach signal with a wire and ran it to gauge cluster! The 3 wires mentioned in the engine bay were routed around the core support in wire way(black plastic conduit) and brought through the same hole in the firewall as the engine harness. I double wrapped the harness with rubber tape then electrical tape and moved the oem harness bracket to utilize a threaded hole in the fire wall to bolt it to.Pic of engine harness. [/QUOTE]
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