mplavery Posted June 24, 2007 Share Posted June 24, 2007 hi ppl just been installing my defi guages and im going to put my old air/fuel ratio gauge in where the clock goes..but having trouble where the wires go on the heated oxygen sensor from the guage i have a black white and red wire... on the oxygen sensor i have two blacks ones, a blue and white... did do a search but no luck thanks ppl:D Quote Link to comment Share on other sites More sharing options...
Jake Posted June 24, 2007 Share Posted June 24, 2007 Are you talking about connecting the AFR gauge to the stock lambda sensor? Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 24, 2007 Author Share Posted June 24, 2007 yes mate Are you talking about connecting the AFR gauge to the stock lambda sensor? Quote Link to comment Share on other sites More sharing options...
Steve Posted June 24, 2007 Share Posted June 24, 2007 Is it a AEM gauge? Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 24, 2007 Author Share Posted June 24, 2007 no its just a cheapy auto gauge Is it a AEM gauge? Quote Link to comment Share on other sites More sharing options...
Jake Posted June 24, 2007 Share Posted June 24, 2007 yes mateWhy though? It won't tell you anything usefull, it's only a narrowband sensor. Quote Link to comment Share on other sites More sharing options...
Shane Posted June 24, 2007 Share Posted June 24, 2007 The red wire from the gauge goes to switched +12V, the black from the gauge goes to ground, and your white remaining wire from the gauge needs to be conected to the 0 - 1 volt signal output from your sensor. Not knowing the exact sensor you are using, you are going to have to find out which of the four cables is the output. Two of them will be the heater and will have 12 volts across them and I would guess they may well be the white ones, and then one of the others will be earth and the remaining one your sensor output which is connected to your gauge. If you have a multi-meter, or even a small bulb on leads you should be able to quickly determine the sensor heater wires and eliminate them, leaving you with two wires to connect up to your gauge. One will be the earth and when connected up should do nothing on the gauge and the other will be the output you want. As jake says the information shown on the gauge is not accurate by any means and in terms of AFR figures cannot be used. But, what it will tell you is if you are running either lean or rich either side of 14.7 : 1 but you won't know by how much. Good indicator though. Let us know how you get on. Quote Link to comment Share on other sites More sharing options...
JustGav Posted June 24, 2007 Share Posted June 24, 2007 As jake has said, if it is narrow band there is absolutely no point in doing it... Quote Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted June 24, 2007 Share Posted June 24, 2007 As jake has said, if it is narrow band there is absolutely no point in doing it... Well there is the pretty flashing lights... Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 24, 2007 Author Share Posted June 24, 2007 beeecause like i said i was installing my defi gauges so all of my dash was out...this guage was out from my last car and was sitting in my tool box so i said what the hell, dnt need the clock so i put it there As jake has said, if it is narrow band there is absolutely no point in doing it... Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 24, 2007 Author Share Posted June 24, 2007 yes there is that as well Well there is the pretty flashing lights... Quote Link to comment Share on other sites More sharing options...
mplavery Posted June 24, 2007 Author Share Posted June 24, 2007 ahhh just the type of answer i was looking for....cheers buddy The red wire from the gauge goes to switched +12V, the black from the gauge goes to ground, and your white remaining wire from the gauge needs to be conected to the 0 - 1 volt signal output from your sensor. Not knowing the exact sensor you are using, you are going to have to find out which of the four cables is the output. Two of them will be the heater and will have 12 volts across them and I would guess they may well be the white ones, and then one of the others will be earth and the remaining one your sensor output which is connected to your gauge. If you have a multi-meter, or even a small bulb on leads you should be able to quickly determine the sensor heater wires and eliminate them, leaving you with two wires to connect up to your gauge. One will be the earth and when connected up should do nothing on the gauge and the other will be the output you want. As jake says the information shown on the gauge is not accurate by any means and in terms of AFR figures cannot be used. But, what it will tell you is if you are running either lean or rich either side of 14.7 : 1 but you won't know by how much. Good indicator though. Let us know how you get on. Quote Link to comment Share on other sites More sharing options...
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