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anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 6:20 am
by rxsmiddy
most seem to read max at 20:1........................
really need something that reads 30:1 so can tune to around 20:1
Re: anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 8:28 am
by derk
someone will correct me but I don't think 02 sensors read that lean once you hit 20:1 your already in dangerous country
you need to set everthing rich and then tune the engine lean not the other way around

Re: anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 1:21 pm
by tweake
rxsmiddy wrote:most seem to read max at 20:1........................
really need something that reads 30:1 so can tune to around 20:1
theres a couple that will. details escape me at the mo but there is a good thread on patrol4x4.com with details of brands and sensor models for use on diesels.
Re: anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 2:10 pm
by rxsmiddy
derk wrote:someone will correct me but I don't think 02 sensors read that lean once you hit 20:1 your already in dangerous country
you need to set everthing rich and then tune the engine lean not the other way around

we are talking diesel here not petrol, ritch means high egts witch means engine damage
Re: anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 2:44 pm
by churchill
Is this for Common Rail tuning?
Re: anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 4:24 pm
by rxsmiddy
nah this is for 1hdt tunning
Re: anyone use afr gauge.... what one?
Posted: Thu Dec 04, 2014 6:34 pm
by churchill
Interesting, so for full power is it a stoichiometric tune or lean or rich? Sorry, off topic.
Re: anyone use afr gauge.... what one?
Posted: Wed Dec 24, 2014 4:56 pm
by skidmark
I run a pair of these on my 1uz,
http://www.innovatemotorsports.com/products/MTXL.phpThey go to 22:1 on petrol but the table states diesal to 99:1
They come with leads to plug in to a computer to change parameters,I only assume to set up for diesal
Re: anyone use afr gauge.... what one?
Posted: Wed Dec 24, 2014 5:16 pm
by Trundle
You just get them off Nz performance they are good for diesel tuning I have one
Re: anyone use afr gauge.... what one?
Posted: Wed Dec 24, 2014 5:47 pm
by skidmark
Trundle wrote:You just get them off Nz performance they are good for diesel tuning I have one
That's where I got mine from aswell.best deal I could find