I have a Z33 VQ35DE with Haltech Plug and Play 350Z with HKS Supercharger , forged engine 900CC injector fuel pump and more.
Work fine on dyno and road , but one day completly random car wont start , P1580 and P2109. I find issues ( relay ) and work again for few month.
This year , car start but never wont accelerate , P1580 and P2109 back and stay. I test Throttle Body and APP sensor with nissan manual and ... All is ok ... I change TB and App Sensor and same issues ... I try new relay lot of fuse TPS , IPDM changed too and nothing ...
Anyone have a solution ? Possible ECU issues ?
Thanks a lot in advance !

