Hi Chris,
thanks for the feedback. I'll definitely look at this fuse next. I'd love it to be as simple as this (in terms of a fix, not finding a fix). Weather permitting, I'm aiming to do all outstanding tests tomorrow.
Re: your question "What was the voltage between 1 & 6 before you earthed pin 2?"
The voltages I reported were the steady state voltages between pins 1 and 6 (i.e. no energising of the EGR valve via pin2) using back pins and with the connector attached to the EGR valve assembly. Apologies for any confusion in my text.
The measured voltage between Pin1 and pin 6 did not change upon energising the EGR. Thus, in my hands (which is perhaps a caveat), even though I can energise the EGR valve, this doesn't cause a concomitant drop in voltage at Pin 1.
Earlier tests recommended by KBB also gave the same result for Pin 3 (i.e. no change in voltage at Pin3 during energising of the EGR valve).
cheers
Neil
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