Hey mate, thanks for the reply. Funny you should say this, I just tried unplugging one of my maf with the engine running and it didn't affect it. I couldn't get to the other one without burning myself!. I think you may be right. Ill try swapping them for a known working set and get back to you. May be a good excuse to upgrade them
Engine won't run without spark either.
OP hasn't replied as to fitment of a turbo timer.
They're notorious for slow discharge once the IGN is switched off, even with the cool down time set at zero.
Dials will drop to zero at the key "OFF", but engine will struggle on and slowly stall.
Pretty easy to disconnect the patch harness and try it without T.T.
just a solution in case anyone else comes across this forum with the same problem. it turned out to be my F-Con Pro Ecu doing it. i swapped it out of a standard GTR ecu i had lying around and the problem stopped.