Air/Fuel ratio gauges

Lewis · Post by **Lewis** » Tue Mar 13, 2007 10:48 am

I've been perusing eBay and have been considering getting an Autometer AFR gauge to match my 'tach and wondered if anyone had any experience with them?

This kind of jobby

I assume I can use any 3 pin O2 sensor with it, or can a 4-pin be wired to suit?

I was thinking of using it to keep an eye on the injection system, especially if I fit Megasquirt (which I intend to sometime soon) and make sure the fuelling is at least approximately close.

Would this actually serve my purpose or am I better off saving up and getting a wideband lambda instead?

Thanks all

russell_ram · Post by **russell_ram** » Tue Mar 13, 2007 12:33 pm

They only do 'narrow band' sensing so are not really good enough to help you tune an EFi system. You can buy an additional (not from autometer) convertor that goes inline to convert it too a wide band meter but I don't have the link here.

Russ

Eliot · Post by **Eliot** » Tue Mar 13, 2007 1:52 pm

you can make your own for around £10 using a LM339 and a few LEDS.
Its better than nothing, but wideband is much more useful.

russell_ram · Post by **russell_ram** » Tue Mar 13, 2007 8:37 pm

here we are - add this little gizmo and it'll do exactly what you want. And at $199 pretty good value considering it includes the O2 sensor I would've thought.

http://www.dynotunenitrous.com/store/Sc ... roduct=151

Was planning to use one myself but not quite ready yet . . . . .

Russ

Lewis · Post by **Lewis** » Tue Mar 13, 2007 10:29 pm

Hey thanks muchly for that!

Oddly enough I stumbled across one of those on US eBay but didn't really clock what it was.........

Will bear it in mind! Would be nice to keep the Autometer gauge theme going......Along with the several Smiths guages.......Hey ho, can't win 'em all

Eliot · Post by **Eliot** » Tue Mar 13, 2007 10:52 pm

Lewis wrote:Hey thanks muchly for that!

Oddly enough I stumbled across one of those on US eBay but didn't really clock what it was.........

Will bear it in mind! Would be nice to keep the Autometer gauge theme going......Along with the several Smiths guages.......Hey ho, can't win 'em all

Bill Shurvinton (on this board) stocks LC1's in the UK.

stevieturbo · Post by **stevieturbo** » Fri Mar 16, 2007 5:06 pm

Eliot wrote:
Lewis wrote:Hey thanks muchly for that!

Oddly enough I stumbled across one of those on US eBay but didn't really clock what it was.........

Will bear it in mind! Would be nice to keep the Autometer gauge theme going......Along with the several Smiths guages.......Hey ho, can't win 'em all
Bill Shurvinton (on this board) stocks LC1's in the UK.

Ditto Bill...

Give him a shout and he'll sort you out.

If you want a mega cheap display to use with a basic LC-1 , ive used some cheap 0-2v voltmeter LCD displays I found on ebay. Circa £15 or so.

Post by **katanaman** » Sat Mar 17, 2007 12:15 am

No idea what Bill charges but I got mine from salometrading@vano.co.uk at very good prices they also do the digital gauge @£££ or the analogue gauge at much more sensible money. The LC1 will also work with any narrow band gauge though if you want to keep things looking the same.

edited see below.

stevieturbo · Post by **stevieturbo** » Sat Mar 17, 2007 12:21 am

katanaman wrote:No idea what Bill charges but I got mine from salometrading@vano.co.uk at very good prices they also do the digital gauge @£££ or the analogue gauge at much more sensible money. The LC1 will also work with any narrow band sensor though if you want to keep things looking the same.

Bills prices are keen......

Can you explain that last statement ?

The LC-1 is a wideband controller intended to be used with a Bosch LSU4 sensor.

bill shurvinton · Post by **bill shurvinton** » Sat Mar 17, 2007 12:55 am

I also offer a discount to the forum. There are a couple of new products out so I ought to put up a new posting with prices to members.

Post by **katanaman** » Sat Mar 17, 2007 11:25 am

sorry Stevie replace sensor with gauge it will work with a narrow band gauge and to get the full reading you can obviously plug a laptop in and read the data when tuning.