Hi Shaun

Firstly no attitude here,and I'm far from perfect, calm down its not good for the blood pressure.
What you decide to do with any help/info given after you ask for it is up to you, doesn't bother me either way.

Let me just run you through the post from my end,
1 You have identified a fault relating to the 02 sensor heater circuit.
2 Testing so far has been live data block 41 which has proved useless.
3 Time for some basic tests then, but at this point you asked for 'Any ideas or magic bullets welcome.'

I asked what tests you had done to be told
'None so far except to confirm that the heater on the old sensor was ok at 3.1 Ohms (didn't know at time of changing what pins the heater was on.'
So I gave some advise on identifing the heater wires at the sensor and advised some basic tests to be told 'But I think this one has gone well beyond the basics now'

So you have identified a fault that is well beyond the basics without doing any basic testing yet?

'I really resent the 10/15 minutes comment. I often spend time looking through my records to get information to help other UKAT members (see my posts about inductance testing if you wish) to me that's what this forum is all about. I only ask for ideas on the ones that have got me a bit foxed.'

I have no problem helping people who have EXHAUSTED ALL TESTING at their end and are looking for some direction, we all hit a brick wall every now and then and this is what the forum is for.

You say you have been in the trade 34 years and now only do only diagnostic and electrical work and 'only ask for ideas on the ones that have got me a bit foxed' yet you have done NO basic tests to this circuit yet and I find it hard to believe you are not capable of this.

My point was that if you're not willing to invest 10/15 mins in basic testing on a car you are getting paid to test why do you think it fair to ask others to give up their time for you?

Just my view, read it how you please
Regards
Sean

Ps Will still reply if I see any progress, I'm pretty thick skinned