Thread: O2 Sensor faulty??

Originally Posted by wayneg

I am not 100% sure on this but all reading suggests these oxygen sensors are the same for most cars, the difference only being the wiring and make.
As I am a cheapskate as always I get the cheapest I can in most instances, If you want Bosch fair enough, heres a generic one with a part number you can relate to, only problem it will take 3 weeks delivery.
Universal Lambda Sensor 0258986505 Oxygen Sensor for DAEWOO/HYUNDAI/VOPEL/SUBARU/SUZUKI, 4 wire oxygen sensor, free Shipping-in Sensors from Electronic Components & Supplies on Aliexpress.com

I am becoming more and more impressed with Supercheap for getting stuff quickly at the best price, just ordered a Dayco tensioner pulley, $23+$9 shipping, Repco wanted $65.

Thanks for posting the link. That's a better price. The car still runs so I'm not overly concerned about the wait. I'm not sold on Bosch, just it's peace of mind but it sounds like you have no regrets of a generic brand.

Sometimes I find Supercheap are good yes but other times they are just a straight out rip off, and I mean rip off. I've seen things that other shops have for a quarter of the price. But unfortunately most auto places seem to have their random rip off prices. Only place I haven't been shocked with yet is Autopro but I have only gone there 3 times now, the last 2 times they were much better for what I wanted.

GEMS O2 sensors are 0v-5v. THOR O2 sensors are 0v-1v. I believe that it is wide-band versus narrow-band. Does that effect the decision to just get any 4-wire sensor.

I am very happy about this thread, as I will be happy if cheaper sensors are fittable. However, I have tried, and read others too have had trouble with non genuine sensors.

I've cut the plug off an OEM grade NTK 4 wire sensor to suit an AU/BA Falcon and crimped/heatshrinked it to the THOR sensor cable on a D2, had no problems. If I had a harness plug available I'd make a short patch harness so the Ford sensor was quick to change. The harness plug is dead easy to salvage off an AU as it's just below the brake booster, easy to snip off with a bit of cable.

The GEMS sensor is of course a different matter, no idea where I would find a cheaper substitute.

Originally Posted by glenhendry

GEMS O2 sensors are 0v-5v. THOR O2 sensors are 0v-1v. I believe that it is wide-band versus narrow-band. Does that effect the decision to just get any 4-wire sensor.

I am very happy about this thread, as I will be happy if cheaper sensors are fittable. However, I have tried, and read others too have had trouble with non genuine sensors.

Is the gems a 2 or 4 wire sensor? From all my reading the only differences I could find was 1 2 or 4 wire. Maybe I was just lucky getting random Bosch 4 wire ones.
Like Bee utey it seems sensible if in a hurry to get one off a Falcon or similar

The gems are four wire. I'll post what I ended up fitting to my 98 model year. They were reputable aftermarket, but with the plug included. They've been great.

Well O2 sensors done. Surprisingly easy to get out. Hardest part was prying the connectors apart. No more fault and no more occasional black smoke on medium to hard acceleration.... One job down, more to come