Though not exactly cheap you could send the ECU to say "BBAREMAN" or ACtronics or similar for testing.
It's been a while since I've use them but if memory serves a test is around £50.
Even if it test out as good it rules out the ECU.
I'd like to know which diagnostics system was used for the test though.
Posted on Thursday 14th of December 2017Don't understand this? Ask a question