Just reminded myself I should post in this thread.
In 2011, I swapped a 4AGE 20V Silvertop into my AW11 and the stock ECU died a capacitor leaking death during the swap. So I bought a DIYPNP (
http://www.diyautotune.com/diypnp/) with Sequential Injection board from DIYAutoTune (Same blokes I bought my MS2 from). So I thought I'd share a quick couple of photos and videos while I'm here.
When the kit arrived.
Mostly assembled.
A wiring translation table I did up
I had a bit of a struggle to get the stock VR sensors to pick up a reliable RPM signal, but soon discovered I was missing a resistor on the cam sensor (specific to Toyota dizzies). This fixed the tach signal, but I then discovered I was getting sync issues (related to sequential fuel/spark setups). This turns out to have been caused by the fact that the CAM wheel is snail shaped, and when set to "Rising Edge" detection, ends up detecting early. A quick switch to "Falling Edge" fix the problem instantly, giving me a nice RPM signal, with no sync errors.
First start.
http://www.youtube.com/watch?v=N16HQMd9TfU Learnt very quickly that 2 squirts/cycle settings doesn't work well with sequential fuel injection, hence the WRX sound and lack of ability to rev. Change the settings to 1 squirt/cycle and it sound much better, as shown here:
http://www.youtube.com/watch?v=0ee9OuOCSl4 But I still have a vacuum leak, hence the idle at 3000rpm. I also had trouble getting a lower idle KPA on the MAP sensor with the ITB's on the 20V. I fixed that by shifting the vacuum nipple points on the ITB and switching the fuel load algorythm to ITB mode (Alpha-N[TPS] blended with Speed Density[MAP])I fixed that and then took it for a drive.
http://www.youtube.com/watch?v=rQF3EcFjxSg The stock generated TunerStudio fuel and spark tables were good enough to drive around without running lean or knocking, so was quite happy with that. I just need to fix a few mechanical issues that developed on the car and then I can take it to the local dyno to get tuned. Oh, an actually finish setting up the VVT!
I really like the DIYPNP 1.5 units, they simplify a fair chunk of the DIY complexity of installing a MegaSquirt into a car and have plenty of input/outputs available. If you can afford the extra cash, I'd recommend one over the normal MS1/MS2 kit.
I think the next thing on my list will be to buy a MS3X for my 1MZFE V6 to play with :)