Cheap aftermarket O2 sensor or OEM quality?

[55Test]

I've been dealing with a wonky O2 sensor in my 98 Civic for a while now. Around town driving is ok, but as soon as I hit the highway it starts to act up. It'll feel like it's running out of gas and my Ultragauge will show the short term fuel trim at -29.7, but as soon as I take it out of closed loop operation (either flooring it or getting off the throttle completely) it runs like normal. It'll also work fine if I just unplug the O2 sensor. I've been pricing O2 sensors online and I found a cheap aftermarket one from Primechoiceautoparts for a bit over 28 bucks, and I've found Denso branded O2 sensors on eBay for 48 bucks. Which one should I get? Would the aftermarket one be ok or should I just go with the Denso branded one?

 

[citationxeleven]

Denso O2 sensors on Amazon are a few dollars cheaper with free shipping.

 

[beast3300]

Denso

 

[kschachn]

Did you check the price of a Denso on Rock Auto? I never find anything on eBay that has a lower price than RA.

 

[Mr Nice]

For max gas mileage you need a Denso for your Civic.

 

[Lead Shoes]

For under 50 I got a NTK o2 sensor for my 97 civic, works great, and I have never heard of getting better mpg with one name brand o2 sensor than another name brand in a civic.

 

[hypervish]

Stick with OEM, which in this case is Denso.

 

[Mr Nice]

NTK or Denso for a Honda.

Bosch sensor will hurt gas mileage, especially a universal type O2 sensor.

 

[ltslimjim]

Originally Posted By: Brenden
For under 50 I got a NTK o2 sensor for my 97 civic, works great, and I have never heard of getting better mpg with one name brand o2 sensor than another name brand in a civic.

Originally Posted By: LT4 Vette
NTK or Denso for a Honda.

Bosch sensor will hurt gas mileage, especially a universal type O2 sensor.

Yes, NTK(NGK) or Denso, specific numbers and not universal are a win on a Civic Honda. Some years have Denso as OE and some years have NGK(NTK) as OE.