Afr Gauge Installation
Posted 23 November 2019 - 10:15 AM
Posted 23 November 2019 - 11:06 AM
I got mine as a kit from 14point7.com
Being able to data log will be really useful if you intend to use it as a rolling road alternative and avoid driving in to ditches (wouldn't want the Prime Minister to get squished )
There's a bit of a discussion to be had about where best to put the sensor. They do say about a metre from the valves is ideal, but as A Series inner & outer cylinders will give different readings there's an argument whether you want to sample the lot or just a pair. I didn't really have that option with a turbo. You can buy threaded bosses to weld in on Fleabay - it's best to have the business end of the sensor pointing down a bit for drainage.
Posted 23 November 2019 - 12:10 PM
I bought a Dynojet Wideband Commander about twelve years ago for a different vehicle which I've just fitted to my Mini. It works really well. Really simple installation too, the hardest bit is finding a place to put, and fitting the O2 sensor but it's not that bad.
Posted 23 November 2019 - 04:32 PM
Thanks for the replies, is the wiring fairly simple? is the lamda best placed just beyond the y piece the?
Posted 24 November 2019 - 07:29 AM
I put the O2 sensor just beyond the Y piece so it would get the average ratio from all cylinders combined.
The wiring was one ignition live, earth, one to the sidelights for illumination and then the included pre-wired lead to the sensor.
There's more wiring for the other features like the data logging but I'm not using that.
Posted 24 November 2019 - 09:10 AM
Another tip from my experience - not with a Mini I stress - is to be careful with the ignition wiring. You want the O2 sensor to switch on when you start the engine, not on position 1 running stereo etc. The lambda heats up when it is first switched on and if it is heated much before the engine fires it can be damaged by ‘cold shock’ on the initial blast of exhaust gas when the engine fires. Ask me how I know!
It’s about reading the instructions of whatever kit you get carefully - my experience was with an Innovate system, others may vary I suppose but the point is lambda sensors are more sensitive than you might think, hence the comment above on positioning to avoid condensation getting at the heated element.
Posted 24 November 2019 - 07:44 PM
Posted 25 November 2019 - 05:06 AM
Posted 25 November 2019 - 10:06 AM
Posted 25 November 2019 - 12:33 PM
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