Electrical? Issue

I think you might be on the money AndyMac. Cheers for the suggestion. Will get down to Jaycar for some 8 gauge and ring terminals soon.

 

Ugh. Well, it was a nice thought, but alas, earthing is not the cause.

 

Well I'm stumped...

What about the pin-outs that control your coils and injectors....hard to test if it's intermittent tho.