Ariel I had one of the early versions with coil igniters and injector drivers all in the box. Mike said this generates to much heat and I ended up with a burnt injector driver. Now the igniters are external. If yours is one with everything contained in the ECU, send it in for updating. Mine went a year and a half before it failed. My grounds were not the culprit. I told Mike it better have Military grade components this time or things were gonna get ugly, he assured me it is bulletproof now.