02 sensors location & replcement
#2
Before you were to take the step and cost to replace the O2 sensors perhaps you can troubleshoot with some information as your issue may be something else . Could be as simple as verifying the sensors are connected up correctly as they fit the same type connectors and easily get miswired and crossed .
Do not twist the wires in installation as they are special galvanized wire and brittle .
Bosch and another manufacture have a cheaper connector ready sensor and the X300 has the different titanium sensor other then the common Z sensor so they read differently in that they generate a resistance in the 5.0 volt reference from the ECU before returning as a sensor value . The Z sensor generates it's own voltage from a ground .
Do not twist the wires in installation as they are special galvanized wire and brittle .
Bosch and another manufacture have a cheaper connector ready sensor and the X300 has the different titanium sensor other then the common Z sensor so they read differently in that they generate a resistance in the 5.0 volt reference from the ECU before returning as a sensor value . The Z sensor generates it's own voltage from a ground .
Last edited by Lady Penelope; 04-20-2018 at 10:57 AM.
#5
US has 4 sensors and other countries have 2
The fwd cats is the reference point as you look from the hood side .
You have to feel and look by hand as they go to the point of insulation .
The fwd most cylinder is the # 1 cylinder on the AJ16 and the # 1 bank is always on the # 1 cylinder . S1 will always be the fwd sensor or upstream and S2 will always be the aft sensor or downstream .
If you look at the print you will see that the ECU side of the connector has the same colored wires with the exception of the 1 sensor value return to the ECU . This is how you verify the correct position hookup ,
The fwd cats is the reference point as you look from the hood side .
You have to feel and look by hand as they go to the point of insulation .
The fwd most cylinder is the # 1 cylinder on the AJ16 and the # 1 bank is always on the # 1 cylinder . S1 will always be the fwd sensor or upstream and S2 will always be the aft sensor or downstream .
If you look at the print you will see that the ECU side of the connector has the same colored wires with the exception of the 1 sensor value return to the ECU . This is how you verify the correct position hookup ,
Last edited by Lady Penelope; 04-20-2018 at 11:40 AM.
#6
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Jaglady96 (04-20-2018)
#7
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Codes for 96 are on page 121 :
And is not listed , from a generic car point of view I would suspect the heater . You can put a meter on the heater wires on the sensor side of the connector and the different sensors should read about the same resistance . Blue / Pink wire through the White / Green wire . You'll have to reference the opposite side connector to the ECU for the wire colors . All 4 sensor heater wires get there power from the same fuse # 14 / 10 amp RH engine fuse box and are provided a ground in wire pairs ( upstream then downstream ) by the ECU black connector for the 1st minute of so of the engine starting sequence . A weak point of this circuit is the Papa Indy 61 connector corrosion and the ECU connector corrosion both being common .
http://www.jagrepair.com/images/Trai...20-%202000.pdf
And is not listed , from a generic car point of view I would suspect the heater . You can put a meter on the heater wires on the sensor side of the connector and the different sensors should read about the same resistance . Blue / Pink wire through the White / Green wire . You'll have to reference the opposite side connector to the ECU for the wire colors . All 4 sensor heater wires get there power from the same fuse # 14 / 10 amp RH engine fuse box and are provided a ground in wire pairs ( upstream then downstream ) by the ECU black connector for the 1st minute of so of the engine starting sequence . A weak point of this circuit is the Papa Indy 61 connector corrosion and the ECU connector corrosion both being common .
http://www.jagrepair.com/images/Trai...20-%202000.pdf
Last edited by Lady Penelope; 04-20-2018 at 12:30 PM.
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GGG (04-20-2018)
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Jaglady96 (04-20-2018)
#16
Take some time , she'll wait for you to better understand her so she can better say :
Vrom ,,,,,,,,,, Vrom , Vrom ,,,,,,,,,,,,Vrooooooom .
O2 sensors are the most fical part of engine regulation . At this point we're not talking about the sensor feedback values , but just the heaters .
My Mom says I need to take my nap now .
Vrom ,,,,,,,,,, Vrom , Vrom ,,,,,,,,,,,,Vrooooooom .
O2 sensors are the most fical part of engine regulation . At this point we're not talking about the sensor feedback values , but just the heaters .
My Mom says I need to take my nap now .
Last edited by Lady Penelope; 04-20-2018 at 02:21 PM.
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Jaglady96 (04-20-2018)
#18
Yes , from my understanding someone mentioned that the NTK was different lengths . To be on the safe side they are avail at the local auto parts store in a couple of days ordering and you can take your suspect one with you and compare on the counter so you can get a no questions asked whether you used it or not return . Bosch make a connector ready one also # 12379 .
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Jaglady96 (04-22-2018)
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