2JZGTE VVTi Ignition Issues
***UPDATE – Never put the word resolved with car issues until you are 100% sure! I never really resolved the issue, the 2jzgte vvti igniter seems to have limitations, I ended up going to a LS2 LQ9 Coil setup, info on the kit and installation can be found HERE
Everything posted below is what I did to minimise the issue but I did start having ignition issues again, I’ve amended the post below with all the updated information. I’m going to change from the stock 2JZGTE VVTi coils, leads and DH61 igniter to the LS2 LQ9 coils and report back my findings. I think there is fundamentally an issue with pushing higher boost and power with the stock DH61 igniter***
Have ignition issues? Never under-estimate the importance of the correct spark plug heat range!
For a while now I have had varying levels of spark blow out or ignition break down at anything over 23psi which I though were just bad coil packs, here are some of the things that were occurring, what I replaced and what I did to resolve it;