Page:
Home > Beginners Tech > air fuel / wideband sensors & gauges

Simon

User Avatar

736 Posts
Member #: 1865
Post Whore

Norwich, Norfolk

I have been reading through a few posts on here, and trawling through ebay at sensors and gauges, and it all looks to be a bit of a mind field.

first off (like everyone) i would like to keep this as cheap as possible, so in my box of bits and bobs I have 2 sensors from my nissan RB25 engine, one that fits on the turbo elbow, and one just before the cat. The one on the elbow is a 3 wire bosch item with this stamped on it A24-A21 135 39144. Can I use this for my mini?

If I can what sort of gauge do I need to be looking at to connect it to?

Everything I have seen so far seems to be in the £150 mark with a sensor.

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151


Simon

User Avatar

736 Posts
Member #: 1865
Post Whore

Norwich, Norfolk

for example, would something cheap like this do as a "just for now" so i can at least get the engine setup, and upgrade to a nicer looking gauge at a later date.

http://cgi.ebay.co.uk/Air-Fuel-Ratio-Gauge...=item58834c8f74

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151


Tom Fenton
Site Admin

User Avatar

15300 Posts
Member #: 337
Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

&

TM legend.

Rotherham South Yorkshire

Have a read on Google about wideband and narrowband lambda sensors.

Basically that gauge is for a narrowband sensor and has neither the range, or response time to be any use to set up a turbo mini.

A wideband however has a useful range and also fast response.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂


Simon

User Avatar

736 Posts
Member #: 1865
Post Whore

Norwich, Norfolk

Cheers Tom, I have to admit this is one area I really have no experience on so will have a read up. Didnt even realise there was a narrowband option.

Looks like I could have to get the cheque book out.

Unless anyone has a wideband setup for sale of course...

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151


metroturbo

806 Posts
Member #: 989
Post Whore

North Yorkshire

This is a slightly cheaper method of getting a wideband display up and running. You just need the wideband sensor in addition to it, which should make this kit around £100 all in.
http://www.jaycarelectronics.co.uk/product...el&form=KEYWORD
http://www.jaycarelectronics.co.uk/product...el&form=KEYWORD

Edited by metroturbo on 6th Jan, 2010.


Simon

User Avatar

736 Posts
Member #: 1865
Post Whore

Norwich, Norfolk

Thanks for that, looks interesting, i'll check it out.

where those links both supposed to be the same?

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151


sturgeo

857 Posts
Member #: 1778
Post Whore

Northants

i think the 2nd link is supposed to point here: http://www.jaycarelectronics.co.uk/product...85&form=KEYWORD


robert

User Avatar

6749 Posts
Member #: 828
Post Whore

uranus

zero t ,
you can use your sensor ,
what it WILL do , is tell you if you are rich or lean of 14.7:1 afr .

to do this cheaply ,just connect a digital volt meater ,set on 0 to 1 v dc across the black or grey wire and earth ,connect the 2 white wires to switched pos and neg 12v .

once the engine is running you will get a reading somewhere between 0 and 1 v .lower than 500mv is leaner than 14.7:1 ,and above 500 is richer .



this is a crude simplification ,but will help narrow down your engine .
a wide band is far more specific in the whole range ..have a look at 14.7.com for a cheap option ..


regards robert

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Home > Beginners Tech > air fuel / wideband sensors & gauges
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password:
Page: