2000 Insight O2 A/F sensor

**AClewell** · 06-28-2011, 11:55 AM

I mistakenly purchased an O2 sensor for a 2000 Insight when i really needed a 2001 sensor and guess what no returns on electrical parts. I went ahead and used it for a week while i waited on the right one and it cleared my CEL. It is a NTK 24301 sensor and i needed the 24300 for my 2001. It only has 400 miles on it. My loss is your gain. I will sell for $125 and free shipping in the USA.
Contact me at aclewell@radiks.net if interested.

Eli · 06-28-2011, 02:03 PM

Hmm.

Strange. My 2001 takes a Bosch 15393 (NTK 24301).

**AClewell** · 06-30-2011, 04:03 PM

The part numbers listed here are based on what I read here in the forum. Oxygen sensor
The NTK 24300 is an L2H2 sensor and the original sensor that I removed from my car said L2H2 right on it. I have owned the car since new and this is the first time it has been changed. The NTK 24301 is not an L2H2 sensor so I think I got it right.

Eli · 06-30-2011, 04:19 PM

Interesting. I'll look at the sensor that I replaced to see what it says on it, and compare that with the new one.

I thought that '00 and '01's used the same O2 sensor though.

Eli · 06-30-2011, 09:15 PM

The sensor that I took out of Insight #2, an '01 says NTK L2H2 Japan.

Hmm. The Bosch 15393 that I replaced it with just says NTK Japan. It looks identical to the one it replaced though, right down to the wire colors.

Everything I've found lists the NTK 24301 for the Insight, and the 24300 for the Civic.

I'm trying to find out what the difference between the NTK 24300 and 24301 is, exactly.

So far the only difference I've been able to find is that the NTK 24300 has a wire length of 410mm and the NTK 24301 a wire length of 210mm. And the 24300 seems to cost more overall.

Eli · 06-30-2011, 09:28 PM

Grrrr.. this shouldn't be that hard. I really can't find any technical information on either sensor.

Where did you see that you needed the 24300 for your '01? It seems that if you used the part number on the part you're replacing, you would end up with the 24300 and if you used the parts books, you would end up with a 24301.

Edit: I'm betting that the only difference is the wire length... I can't confirm that yet though. Did the wires on the 24300 seem about twice as long as necessary? lol

**AClewell** · 07-01-2011, 12:22 PM

Yes the wires were twice as long. I wouldn't think that longer wires would make the sensor cost $50 more. Some of the InsightCentral research that I did is linked to in the earlier post. I did have an even better post that was very specific and confident but I can't find it again. The guy really sounded like he knew exactly what he was talking about.

Eli · 07-01-2011, 12:31 PM

I do apologize for hijaking your thread. Just all in the name of increasing the knowledge base, and I was very curious.

I wish I could find something more definitive. Maybe I will email NTK/NGK. I am betting that they just don't bother to stamp the "L2H2" on the Insight sensor and that the only difference is the wire length. The sequential part numbers seem to jive with this. I think that the original equipment that came with the cars were the L2H2 labeled ones, just with shorter wires - probably an OEM thing.

I also noticed that the 24300 is more expensive. Sometimes a lot, sometimes only $10 - that's more reasonable for the wire length increase(they are expensive teflon coated wires). I am betting the overall cost disparity has to do with the Civic being a more popular model - retailers feel they can charge more since the part is more in demand?

It was interesting researching this though. No wonder there is so much confusion over the 00/01 sensors!

Both the 24300 and 24301 should work just fine though. The Insight part is definitely the 24301, as the harness length is very short. Those 90s Civics had lean burn just like our cars do, and the technology hasn't changed much. It all seems to make sense.

**AClewell** · 07-01-2011, 01:51 PM

Check out this link Wideband Oxygen Sensors for performance applications at OxygenSensor.Net it shows the 2 sensors and the Honda parts they replace. Maybe you're right about the wire length. It sure seems like quite a change in the Honda part numbers for just wire length but who knows. Let us know what you find from NTK if you do.