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[ukturbo2000]

will this fit my xj ( i got 4 wires the same) or is it a piece of crap, too cheap,  ebay rubbish
http://www.ebay.co.uk/itm/Top-Quality-Oxygen-O2-Lambda-Sensor-4-Wire-Universal-/261186822279?_trksid=p5197.m2280&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D191%26meid%3D6400851132831358164%26pid%3D100068%26prg%3D1104%26rk%3D1%26sd%3D330555500008%26%26clkid%3D6400851143938387861&_qi=RTM1319883
thanks

[daggie]

crap ! the burn out after a month 

[Jonny Jeep]

It will fit and it is the correct type of sensor (zirconia) but it's anybodies guess what the quality is like. I use NTK (OEM supplier) for O2 sensors.

[ukturbo2000]

Thanks for the info

[gazjeep]

Try Rockauto, cheap & very quick delivery 

[gordy]

Tell me more about the symptoms you have with your Jeep, I'm thinking my O2 sensor is playing up too, getting random loss of power under load when cold or warm, no issues at regular operating temp. Check Engine light has not come on at all.

[ukturbo2000]

Gordy mine is not doing anything yours is doing. My symptoms are running very rich when at normal operating temperature and the obvious strong fuel smell from exhaust with poor mpg

[ukturbo2000]

Try Rockauto, cheap & very quick delivery 

Thanks for that will check them out

[JamesH]

Check all the vacuum hoses connecting to the manifold. I had a small hole in one of mine that caused problems

[ukturbo2000]

Check all the vacuum hoses connecting to the manifold. I had a small hole in one of mine that caused problems

thanks for that, yes i did that this afternoon.

[demonicwillow]

You can check the sensor fairly easily with a voltmeter, 4 wires at the connector by the sump, 2 white are the heater, black is the signal and grey is the negative, back probe the black on the sensor side of the connector with the positive from the meter and ground the negative, start the engine and after a short while (30 seconds or so) with the meter set to read say 40v or 4v or whatever the range's are the sensor should vary constantly from 0v to 1v (0v lean 1v rich) try it at different revs it should constantly switch back n forth, pump the throttle hard it should go rich momentarily then flip, from high revs to idle it should go lean momentarily then flip, leave it run for 10 mins or so and see if it keeps flipping, if it stops at near 0v the ecu will assume its lean and richen up the fuel, other problems may give the syptoms of a failed sensor though.

[ukturbo2000]

You can check the sensor fairly easily with a voltmeter, 4 wires at the connector by the sump, 2 white are the heater, black is the signal and grey is the negative, back probe the black on the sensor side of the connector with the positive from the meter and ground the negative, start the engine and after a short while (30 seconds or so) with the meter set to read say 40v or 4v or whatever the range's are the sensor should vary constantly from 0v to 1v (0v lean 1v rich) try it at different revs it should constantly switch back n forth, pump the throttle hard it should go rich momentarily then flip, from high revs to idle it should go lean momentarily then flip, leave it run for 10 mins or so and see if it keeps flipping, if it stops at near 0v the ecu will assume its lean and richen up the fuel, other problems may give the syptoms of a failed sensor though.

many thanks, i will give that a try