My awesome daily project 35mpg/150whp highway donut
10-24-2012, 03:29 PM
#446
Do exactly as I said. Exactly.
If R2 and R3 are already removed, obviously omit that step.
If you look closely at the DB15 connector, the pins are labelled.
Looking at the connector on the VVTuner, pin #1 is on the top left. It has a white wire on it. Remove it from #1 and solder it on pin #3, which is also a white wire.
Do the same with the pink wire on pin #2. Remove it and solder it on #4.
Simple as that.
Ignore any other information you have seen, heard.
If R2 and R3 are already removed, obviously omit that step.
If you look closely at the DB15 connector, the pins are labelled.
Looking at the connector on the VVTuner, pin #1 is on the top left. It has a white wire on it. Remove it from #1 and solder it on pin #3, which is also a white wire.
Do the same with the pink wire on pin #2. Remove it and solder it on #4.
Simple as that.
Ignore any other information you have seen, heard.
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10-24-2012, 04:11 PM
#447
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those photos are from my VVTuner. it does not have any wires in it. the 15 pin connector is thru board mounted. the wire you see in the photo are the two jumpers I added. maybe there are two versions of the VVTuner? one thru board and one with wire/leads to the connector.
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10-24-2012, 04:21 PM
#449
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VVTuner uses a standard right angle, through hole boardmount D-sub. There is no VVTuner version that uses an internal solder cup connector.
The other question is why is VVTuner occasionally causing a sync problem with MS2 in pass-through mode? That I don't know. This would be the 3rd report of it. We've been unable to replicate the problem in either pass through or parallel mode with MS2. Kevin's 01 swapped 90 recently spent days on the dyno, running without sync loss.
We want to find or fix, but we can't find the problem.
The other question is why is VVTuner occasionally causing a sync problem with MS2 in pass-through mode? That I don't know. This would be the 3rd report of it. We've been unable to replicate the problem in either pass through or parallel mode with MS2. Kevin's 01 swapped 90 recently spent days on the dyno, running without sync loss.
We want to find or fix, but we can't find the problem.
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10-24-2012, 04:48 PM
#451
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VVTuner uses a standard right angle, through hole boardmount D-sub. There is no VVTuner version that uses an internal solder cup connector.
The other question is why is VVTuner occasionally causing a sync problem with MS2 in pass-through mode? That I don't know. This would be the 3rd report of it. We've been unable to replicate the problem in either pass through or parallel mode with MS2. Kevin's 01 swapped 90 recently spent days on the dyno, running without sync loss.
We want to find or fix, but we can't find the problem.
The other question is why is VVTuner occasionally causing a sync problem with MS2 in pass-through mode? That I don't know. This would be the 3rd report of it. We've been unable to replicate the problem in either pass through or parallel mode with MS2. Kevin's 01 swapped 90 recently spent days on the dyno, running without sync loss.
We want to find or fix, but we can't find the problem.
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10-24-2012, 04:57 PM
#452
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Also, that fix relies on a parallel install with pullups in the other ECU, so it would actually break standalone functionality.
The only commonality I can find so far is it is 3 reports on 1 forum, and all 3 had MS2 based ECUs (though different versions). So that leaves me to believe that is related to MS2 and VVTuner, but our own car works brilliantly with this combo.
If there's a problem, we want to find it. I just need more. Is your ECU plug and play with a standard 1.6 harness? If so, we can put it on Kevin's car.
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10-24-2012, 05:00 PM
#453
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Thanks for looking into this.
Who installs a VVTuner stand-alone and why would anyone want to?
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10-24-2012, 05:13 PM
#454
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I don't have a 94 with VVT swap here unfortunately.
VVTuner is sometimes used on swapped cars running non-MegaSquirt management (including stock). Deleting the pullups from all boards would break that functionality as well as pass through functionality that works for everyone else.
VVTuner is sometimes used on swapped cars running non-MegaSquirt management (including stock). Deleting the pullups from all boards would break that functionality as well as pass through functionality that works for everyone else.
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10-24-2012, 05:38 PM
#455
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I don't have a 94 with VVT swap here unfortunately.
VVTuner is sometimes used on swapped cars running non-MegaSquirt management (including stock). Deleting the pullups from all boards would break that functionality as well as pass through functionality that works for everyone else.
VVTuner is sometimes used on swapped cars running non-MegaSquirt management (including stock). Deleting the pullups from all boards would break that functionality as well as pass through functionality that works for everyone else.
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10-24-2012, 06:37 PM
#457
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I sent 3 emails to DIY about this over several moons, many many moons ago and they never responded to any of them.
It would be interesting to see what my stock BP4W ecu + BP6D head + VVTuner would do. I haz a boomslang somewhere in the garage too, but I'm broke and see no VVTuner in my future :(
(Hustler: buy my vvt head!)
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10-24-2012, 08:33 PM
#458
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10-24-2012, 09:06 PM
#459
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Thanks Ben, but this was literally years ago so no worries. It wasn't until today that I even knew this would work with the stock ECU as your site does not explicitly state this.
Are you guys EVER going to offer the VVTuner as a kit, because I would definitely buy one. I'd also spend money on a PNP harness for a 99/00 ECU.
Like Hustler, I'm a moran and don't know how to take this:
and magically splice it into this:
http://www.madracki.com/miata/images/wiring/00sys.pdf
without causing this:
(Note: I haz correct boomslang and would pay one of you goobers to build an interface harness. PM me)
Are you guys EVER going to offer the VVTuner as a kit, because I would definitely buy one. I'd also spend money on a PNP harness for a 99/00 ECU.
Like Hustler, I'm a moran and don't know how to take this:
and magically splice it into this:
http://www.madracki.com/miata/images/wiring/00sys.pdf
without causing this:
(Note: I haz correct boomslang and would pay one of you goobers to build an interface harness. PM me)
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