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Is there a gauge out there that reads 02 volts?

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BuickMike

Money pit
Joined
Jun 7, 2001
Messages
2,792
I'm thinking about taking apart an old volt meter and making one myself, but do they exist? I'm thinking having a backlit digital display of 02 volts would be so much nicer than a A/F Meter.
 
Originally posted by BuickMike
I'm thinking about taking apart an old volt meter and making one myself, but do they exist? I'm thinking having a backlit digital display of 02 volts would be so much nicer than a A/F Meter.

You have to watch the sampling rate, some meters seem to only sample once every 2 secs. or so.
 
The Scanmaster 2 performs this and many other functions. Practically a staple in the TR community. However, the best setup is a wideband O2 sensor from the like of Dynojet (WideBand Commander) or Innovate (LM-1). These sensors show true air-fuel readings, unlike the factory O2 sensors. The readings of a Scanmaster or typical Autometer A/F gauge are really not that accurate, with the Scanmaster still being much better than the Autometer light show.
 
not a guage... but does what you want

Fast Freddie performance makes an 02 gauge that displays realtime numbers.

It is a little black box that hooks up in a few minutes and has an on/off toggle.

I keep mine in my glove box and pull it out when I want to check out the numbers.

I think it was like 65 bucks.
 
i was doing this a while ago. i used a inexpensive radio shack digital meter, i think it sampled every .5 or 1 sec. fast enough concidering you don't want to be watching it that much anyways. your eyes really should be on the road... i ran a wire from the o2 sensor to the meter, under the hood and up to the dash. the only reason i quit using it one night at the track it started to rain, i didnt' take out the wire and the windshield wipers ate my wire.

if i was going to buy a meter for it i'd get an analog one so you can really watch it closely. or just a air fuel gauge, neither of these ways are overly accurate. and you have to watch out, there is a problem with where voltage is right. on a scan master or turbo link i think you want to be around 750 (i think...) and with a volt meter you want to be about 850.

if your on a budget it works, but if you can spend the money on somethign better, just do it.
 
That's what I'm looking for!! I don't have a bunch of money, but am looking for something to help me tune with alky without blowing anything. I'm thinking to get just the volt meter and go with a Poston knock gauge.
 
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