Hondata

K20A2 with K-Pro V2 in an Lotus Elise S2 with JRSC and CC running on E85.

I got this code last year, in the beggining it did just come on every ten times I started the car but then it come on more often and now it is on all the time. I have tried to start the car with an K-100 and the code did not apear then. I have also messured to see that the generator works, the battery is all new, the main relay is ok etc.

Anyone please help me out, because of this error code the car is very hard to start (need to crank forever)

What coukld it be? Ground problems? The K-Pro seems fine and works well except this error code (that you could not close with just DTC clearing)

Best regards

You should try the ECU in a known working vehicle to see if it is the ECU or something in your own car.

VBU voltage high means that the main relay wiring is incorrect. It will not affect cranking and running.

But it did not throw this code with the K-100 installed in it :/