Nfinitecc

Say Chi Sin Lo

Just feels like I'm wasting 4 brand new spark plugs, that's all.

Nfinitecc

vicrc

I don't see any reason to replace them. Clean, check gap and go. Are you sure oil is coming in through the seal?

Say Chi Sin Lo

I'm no mechanic, so I may not know what I'm doing. But here's my train of thoughts on this matter:

- Car registered a #4 misfire, enough times to trigger a CEL.
- Was going to swap spark plugs and clear the CEL, see if it'll come back. But...
- Took out the ignition coil, and only #4 had slight oil residue at the bottom of it.
- Found a well made video on "one possible" cause of oil on ignition coil, doesn't seem too difficult of a job.
- Car has enough mileage to warrant ignition coil replacements.
- New spark plug seals are dirt cheap. Also has enough miles to warrant replacements.

I've already purchased the parts for this job:
- New Denso Ignition coil # 6732301 x 4 = $42.78
- New NGK PFR7G-11S x 4 = $36.02
- New Honda OEM Spark Plug seals 12342-PCX-004 x4 = $6.50

I figured, $90 for this little engine refresh isn't too bad, so why not?

Say Chi Sin Lo

Parts arrived early:


I can never get tired of the beautiful red valve cover:




I went ahead and cleaned the spark plug tubes. Wrapped a paper towel around my wrench extender, stuck it down the tubes, and cleaned off the oil best that I can.



Earlier, I stated that I had a misfire in cylinder #4. Turns out, I had oil seeping into cylinder #2's spark plug tube too. Note the shinier appearance of the ignition coils from #2 and #4:



Time to get the old, worn our spark plug seals out. Use a flathead screwdriver + hammer and start prying out the old seals:



All in all, I replaced the old ignition coils, spark plugs, and spark plug seals:



Put everything back together (yes, I know one of the Denso labels came to me upside-down, haha) :



Side note, here's a comparison between OEM AP1 and Denso 6732301, which is the 2004 - 2005 AP2 equivalent:



*SIDE NOTE / FOR SALE*
If anyone wants to buy the old AP1 ignition coils, or the lightly used spark plugs (less than 2,000 miles I believe) for a very low price, please let me know.

vicrc

How was your connector housing to the coils? My 2005 with 84k miles at the time shattered when I remove them. Lucky I had another car to drive.

Say Chi Sin Lo

You mean the wiring harness for the 4 plugs going into the ignition coils?

Regardless, nothing was shattered or in bad shape.

Say Chi Sin Lo

Hello all, so... I decided it was time to clean my IACV because well, when the car is cold, it looses its shit when I'm slowly rolling to a stop. The RPM will dip down near the first dash mark on the RPM bar, and quickly freaks out and rev back up to ~1,000RPM.

Took out the IACV, and removed the motor and the valve was a little "stuck". As in, the valve wouldn't rotate with the lightest of touch. So I started to clean the carbon build up in the chambers.

My question is, what is the chamber on the far left (towards the front of the car)? And why is it so... gunky? It's divided into two halves and I have a lot of gunk in it. Truth be told, I couldn't get all of the gunk off:

Before:



After... Still gunky but I couldn't make anymore progress after 10minutes of carb cleaner + old toothbrush



The car is idling fine and the IACV motor itself is sparkly clean. But that gunky chamber is umm... unsettling to say the least. Any suggestions on what that chamber does, and why it's so gunky?

Should I just replace the IACV?

vicrc

Wow never seen one like that before, maybe someone tried to seal the gasket with some type of glue