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Hi guys new here ,

Neighbors 08 civic 161000 miles was running rough she said , cel blinking then solid . checked codes today 9 of them..

304 302 300 301 303 304 pd 302pd 300 pd 303 pd.

Should she take it to the dealer or is there anything I can check myself before I do? Any help really appreciated as she has very limited funds..

CEL blinking is active misfires. All of those codes are misfire related on multiple cylinders. I bet the plugs are toast. I recently got the same thing on a recently acquired 2006 with 200k+ miles

Replace plugs with:

NGK ILFR6J-11K

or

DENSO SK20HPR-L11

They are spendy at $14 each from an auto parts store, and you need 8, 4 in front, 4 in rear. The dealer will want $20+ each.

Also, coils might be bad.

http://www.hondapartsdirect.com/auto...er=12290rmx013

rockauto.com sells coil, Hitachi IGC0051 for $42.79.

I recently replaced a bad coil on aforementioned '06 with one of these, and everything is great.

Good luck,

Steve

Thank You I will check plugs tomorrow

You need a swivel socket + small extension to remove the 4 plugs in the back. Otherwise you have to remove the 'cowl' assembly. After you replace all the plugs I would pull the battery cable to do a complete reset to get rid of all those codes.

Good point. I found if you use two short extensions, you don't need a swivel.

Without removing the cowl, getting the driver side rear coil out and in is tricky. It's okay to flex the shaft a bit.

Put 1st short extension (~3") on the socket and lower into the cavity. Once the socket engages the plug, add the 2nd short extension and your ratchet. It puts the ratchet at a perfect height where you have a decent range of motion.

Did the plug & coils fix the Civic that was running rough?

I have a 2006 Civic Hybrid with 173,000 miles. Started running rough a few days ago. I spun out on some ice at an intersection and then the wheel caught pretty hard. Then the Check Engine Light started blinking after a mile when I tried to climb some steep hills. Noticed a lot of lurching when I went over 2-3k RPM's & lots of power loss. Had AutoZone check the codes and it was throwing p0300, p0301,p0302,p0303, p0304 & 61-1 Missfire detected & battery voltage codes. Seems odd that all cylinders would be misfiring at the same time. Talked to the friend I bought it from and he never replaced the spark plugs. I bought it before it was time to replace them i guess. Seems to me it could be something electrical or something with the timing. I checked my battery and it has clean connections and good grounds. Any suggestions on where to start?

Quote:

Originally Posted by Colematthew82 (Post 255311)

173K on original plugs = toasted plugs. Recommend remove, inspect and likely replace. Do not attempt to re-gap

OK, Thanks for the suggestion. I was going to order 8 of the NGK OEM Iridium plugs. Part number ILFR6J-11K or 4458. Found some on E-bay motors for $80.75 total to the door. Those seem to be what everyone recommend. Any advice there?

I got mine from O'Reilly's for $13.99 each. I needed the car to run well quickly.

OK. Do you remember the brand? How do you know how tight to screw them in?