Hey guys, it’s me again. To start with some good news: the 3SZ is in, and it all looks good in terms all the bolts, nuts, wires, plugs, hoses etc etc.
Now the bad news: the car will not run. The fuel pump runs, all the electrics work, the timing is right, and the starter works, but it won’t run. We checked for sparks: nothing. Everything else seems connected, so I assume that the ECU doesn’t give “the signal” for sparks. I think it’s because of the immobilizer. I used my own key, and the immob to which it’s paired. However , the ECU is different (because it’s from the 3SZ), and I think that’s the issue.
read “EFI ECU”
I think the fuel and ignition are cut off because of those codes. This is form the YRV manual, but I think the Sirion 2 ECU will work the same way.
People who did a K3 swap may say: “you can bypass the immob by switching the pin on the ECU”. The K3VE and K3VE2 have this option. However, this ECU doesn’t appear to have that kind of pin.
SIO2 is the pin that goes to the immob.
I’ve read this a few things about resetting the immob and registering a new key, but I don’t have a master key unfortunately.
But, maybe the immobilizer isn’t the problem, so all suggestions are welcome! I hope someone can help me find a way to make things work, because this appears to be the only thing that’s keeping me from driving this pocket rocket! @Mr_Gormsby @Mick perhaps?
(btw, if anyone needs anymore info, I have a lot of manuals etc so if you need it: please say so!)