When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The pack on the left is oem 00-03, and can be used in 00-05.
The Resistor pack on the right is for 06-09 only. The factory service manual warns of ecu damage if interchanged.
04-05 coil packs can be used on 00-05.
Keep in mind the is USA info. If the Canada cars are DBW 06-09, then it would apply there also.
Everything I've read indicates that 673-2301 is fine for all pre-DBW cars, and that 673-2304 is for '06+. But I've learned to take everything with a grain of salt re: these coil packs.
If there are AP1 guys out there that have had ECU issues due to 2301 coils, I'd be very interested to know. I obviously don't want to be running coils that could damage the ECU or maybe even worse, the piggyback ECU I'm running.
Everything I've read indicates that 673-2301 is fine for all pre-DBW cars, and that 673-2304 is for '06+. But I've learned to take everything with a grain of salt re: these coil packs.
If there are AP1 guys out there that have had ECU issues due to 2301 coils, I'd be very interested to know. I obviously don't want to be running coils that could damage the ECU or maybe even worse, the piggyback ECU I'm running.
Not sure if you saw me tag you the other day in the thread below (I honestly do not know if the tagging notifies correctly here) but that user appears to have gotten the same NGKs as you did that they worked for him. So now wondering if some are not stamped incorrectly.
I returned the NGK coils. As mentioned by others here, either something has recently changed with these particular coils from NGK, OR they were mislabeled -- otherwise they almost certainly should have fit in my car, since they have for others.
As most people already know, Denso 673-2301 coils will fit in a '00-'03 despite most (all?) product and Honda sites saying otherwise. I ordered ONE of these and confirmed it does fit and the car works perfectly fine with this one and my 3 originals, so I went ahead and ordered 3 more of them. I was able to get a decent deal on them, so the price was only slightly higher than the NGKs from RA. The only thing this ended up costing me was some time and frustration... but I learned stuff.
For anyone else that has these same questions and stumbles on this thread, hopefully documenting my struggles here is helpful. Here's a side by side of the 2 Denso coils, fwiw.
Good call. Problem solved
Glad you got those Denso 673-2301 from RA. They're proper coils and cost a lot less than the dealer's price.
It’s not the R. It’s the raised square under the word “Japan”. The manual explains the significance of the raised square, identifies it as a resistor pack, for 2006-2009 cars only. I can get a pic tomorrow and post it up.
It’s not the R. It’s the raised square under the word “Japan”. The manual explains the significance of the raised square, identifies it as a resistor pack, for 2006-2009 cars only. I can get a pic tomorrow and post it up.
