O2 Sensor
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From: Galveston, TX, us
O2 Sensor
After doing some checking I relized that the o2 sensor that is currrently on the header is the one for the obd0 with one wire. The one that is suppose to be there is for a obd1 with four wires. Other than getting the right one does anyone know if there is a way to wire it up to a one wire setup. I don't think there is a way but figured it owuld be worth a shot.
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O2 Sensor:
-Your new O2 sensor will have 4 wires. All 4 of these wires should be ran thru the firewall and to the ecu.
*Note* It is possible to use a single wire O2 sensor, but it requires some more knowledge (which I haven't looked into yet). But I believe it requires running the 1 wire O2 sensor lead to where the signal wire on the 4 wire sensor pins to the ecu, and then fooling the ecu into thinking the heating element is attached. I think this is done with a resistor, but I'm not sure. Personally however, it seems to me that the 4 wire setup should be the preferred method as this is how the system is supposed to function
from http://www.g2ic.com/forums/showthread.php?t=86612
-Your new O2 sensor will have 4 wires. All 4 of these wires should be ran thru the firewall and to the ecu.
*Note* It is possible to use a single wire O2 sensor, but it requires some more knowledge (which I haven't looked into yet). But I believe it requires running the 1 wire O2 sensor lead to where the signal wire on the 4 wire sensor pins to the ecu, and then fooling the ecu into thinking the heating element is attached. I think this is done with a resistor, but I'm not sure. Personally however, it seems to me that the 4 wire setup should be the preferred method as this is how the system is supposed to function
from http://www.g2ic.com/forums/showthread.php?t=86612
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From: Ft. Hood
Re: (4163175587)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4163175587 »</TD></TR><TR><TD CLASS="quote">O2 Sensor:
-Your new O2 sensor will have 4 wires. All 4 of these wires should be ran thru the firewall and to the ecu.</TD></TR></TABLE> Not all four wires run directly to the ECU, only two of them; Heater (ECU A6) and Signal (ECU D14). The other two wires - ground and 12 volt - can easily be sourced from the bay.
Reference - Here
-Your new O2 sensor will have 4 wires. All 4 of these wires should be ran thru the firewall and to the ecu.</TD></TR></TABLE> Not all four wires run directly to the ECU, only two of them; Heater (ECU A6) and Signal (ECU D14). The other two wires - ground and 12 volt - can easily be sourced from the bay.
Reference - Here
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From: Sofia, Bulgaria
Re: O2 Sensor (tibss)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tibss »</TD></TR><TR><TD CLASS="quote">...does anyone know if there is a way to wire it up to a one wire setup. I don't think there is a way but figured it owuld be worth a shot.</TD></TR></TABLE>
well, if you have a chiped OBDI ( maybe a p28 or p30) ECU you can simply disable the O2 heater with a bin editor such as Crome.
then just find out which of the 4 wires goes to the D14 and connect the 1 wire O2 to it.
well, if you have a chiped OBDI ( maybe a p28 or p30) ECU you can simply disable the O2 heater with a bin editor such as Crome.
then just find out which of the 4 wires goes to the D14 and connect the 1 wire O2 to it.
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efking1985
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Feb 12, 2007 08:31 AM