Agggh -help Needed Please

[benjam]

Here are some words I prepared earlier.

"The O2 sensor is designed only to be sensitive to a small AFR range around the mid point of 14.7:1. It does not work in a linear way. So in a practical sense the <LED> meter will only show when the ECU is in closed loop mode or when there are either lean or rich mixtures. It will not indicate to any great degree how lean or rich the mixture is at any time."

Check out this webpage I made after installing a AFR meter in one of my old cars. It was a kit bought from Jaycar.

http://benjam.com/mycars/proafrmixmeter.htm

Cheer.

Ben

[shiftkits.com.au]

The BA's have fuel and spark cut when decelerating, so it will show lean when you back off.

[cobrav8]

So... Maybe the Knightrider just had the mixture meter installed on the bonnet then?

Bloody silly gauge then -- oh well.

[Antisocial]

  cobrav8 said:

So... Maybe the Knightrider just had the mixture meter installed on the bonnet then?

Bloody silly gauge then -- oh well.

<{POST_SNAPBACK}>

Could be worse you could have an F6 boost gauge, tells you what boost pressure you were at ........a few minutes ago.

[cobrav8]

haha - a bit slow are they?

The Autometre one is very responsive - you can move the accelerator - and it moves with your foot!

[Barry Blue]

  cobrav8 said:

Well - gauges are all connected up and going, boost is good, mixture is a bit weird:

With your foot right down it displays rich.  With foot off, slowing down it displays lean, but if you are driving along the gauge looks like something from the Nightrider (flashes left to right ie lean to rich) and the faster you go (more revs) the faster it seems to flash back and forth.

So....  WTF?  surely they arnt suppose to be like this?  I expected at constant revs the mixture gauge would read a constant reading?

Any ideas?  Anybody else using Autometre Mixture gauge?

<{POST_SNAPBACK}>

I have yet to install mine, but the instructions do say that when cruising at a constant speed, the lights would flash from lean to rich etc because the computer was constantly adjusting the mixture.

Clarke

BTW Cobrav8, I too was bidding on the guages you bought from Ebay, so you can er um, blame me that you had to pay $282 instead of $255, sooorry

[cobrav8]

No worries BarryBlue - where should I send the bill to?

The kids love the funny 'engine flashing lights' as they call them.

Where did you end up buying them from?

[Barry Blue]

  cobrav8 said:

No worries BarryBlue - where should I send the bill to?

The kids love the funny 'engine flashing lights' as they call them.

Where did you end up buying them from?

<{POST_SNAPBACK}>

I'm a bit late on reply, but I got Autometer Cobalt series on a big sale at Autobarn for $125 Boost, $129 AF, $85 Pod = $339 Total

I have installed these now and my disco lights, er AF guage does the same as yours, if I had the choice over again, I'd probably go for an Auto tranny temp guage.

Cheers Clarke

[cobrav8]

Oh well - they look cool anyway.

Good prices on new items there. Around $200 per gauge in New Zealand, and I assume you could get a pod from SS inductions. Looking at least $500 all up here. (so cost me about half that landed in NZ to buy second hand from Aus).

[Barry Blue]

  cobrav8 said:

Oh well - they look cool anyway.

Good prices on new items there.  Around $200 per gauge in New Zealand, and I assume you could get a pod from SS inductions.  Looking at least $500 all up here. (so cost me about half that landed in NZ to buy second hand from Aus).

<{POST_SNAPBACK}>

RRP for Boost was $179 and AF $189, so I saved heaps there, and my Pod did come from SS inductions (stone grey).

I had a lot of trouble with my boost guage sticking, and finally worked out the problem was the hole in the pod was slightly out of round. After fileing the hole bigger so the guage was loose my problem was solved.

Clarke