Deflocks

Misfire is showing up on all cylinders
Bought the EGK Iriduim plugs and the said pre-gapped, the CEL and TCS is on and my OBD2 is popin up all misfire cdodes like it did before i chaged out the plugs. ITs a 99, and all i have on it is ICEBOX and XSsport Headers

01tl4tl

NGK right- not Egk?
99?- did that have the plug wires still, or does it have a seperate coil on top of each spark plug?
If seperate coils- check all the electrical connectors are in tight.

It was doing exactly` what` that caused you to get the codes read before, and buy plugs?
How many miles on the car now?
SO new plugs didnt cure a misfire- you need to figure out the real problem.
We need more specifics

01tl4tl

to reset the computer between fixes- pull fuse marked `Clock` in the passenger footwell
somewhere around #12 fuse location
pull it for a few minutes and reinstall

Deflocks

Sorry was at work and trying to finishing typing when a customer walked up to me. Yes NGK plugs, the car has @112500 miles on it, the bulk was hwy. i was changing out the plugs for a tune-up\CEL light i saw pop up, i also changed the battery since the one that came with was a old one from the dealership i bought the car from( just learned this from a friend who now works there). when the CEL popped up the first time i was driving home from work, the car was having problems "shifting" i want to say, it was moving as smooth as it was before. I went out a bought a OBDII since my older one was missing, and it showed all the misfire codes:
c1, c3,c2,c4,c5,c6, random misfire.
so i changed out the plugs and i was perfect(i reset the computer as well by disconnecting the neg on the battery also running around trying to remember my radio code ) for a little over a week, and when i was on my way to work the CEL popped up again and i pulled over and plugged in the OBD: all except for c6, random misfire. today is my day off so i want to nip this problem. thank you guys for all of your help\ideas, i knew i loved this forum

bibledriver

Chances are good you have a bad coil. Didn't answer 01tl4tl's ? about plug wires or coils on each cyl. New OBDII? what do you mean? code reader? Do you still have the old plugs?

Deflocks

I just unplugged all the wires and re-plugged them back in and reset the comp and its gone, must have been a loose wire then. Thanks for ll your help guys

bibledriver

Sure. Glad its better, but drive for a week before you get too excited

6MTUA5

iTrader: (2)

Resetting the computer can clear the code for a little but it might come back.

TX-Miner

If the 99 does have a coil and distributor, also look at the distributor cap and rotor. The rotor "touches" all 6 plugs every set of firing. 100,000 mi on a cap is pretty good. If the CELs come back, I'd look there as well as the coil. Plug wires do wear down as well, but they tend to misfire on a single cylinder at first.

Miner

01tl4tl

99s had some sort of extended warranty on the tune up parts like cap and rotor iirc
emissions test related~ call acura 1-800-382-2238x5 and ask if you are covered
and tell us what wires you played with to fix it

Legend2TL

Coil on Plug for all of the 2G TL's

Legend2TL

One thing to check if it does happen again,

1) That a good look at the coil high voltage terminal, make sure the spring and terminal are in place. Sometimes the terminal falls off the spring.

2) Look at the coil for any signs of carbon traces along the plastic coil body or the high voltage insulator boot. If it's there make sure to clean it off.

3) Sometimes sparkplugs come with two contact tips, one short and one long (all the NGK's I've used recently came with only the tip on the plug which is pernament). I believe all the Acura's and Honda's use the long terminal tip.

Legend2TL

Naaaa, let's keep the endless topic going

I've always replaced the water pumps. Anti-freeze and brake fluid also very good to replace every 2-3 years, good preventive maintenance. However I've never replaced the power steering fluid on any Honda, IMO there's no reason to do so with the Honda racks and pumps.

Munda

I've read there is a DIY on changing spark plugs. But everytime I've searched "Spark plugs" in the "DIY Mod section", I don't get any return threads.
Any help? Thanks

Bearcat94

Hmmm? I don't find an actual DIY either.

I did turn these up and there are some tips, but you've gotta sort through the threads (ignore the seat memory thread).

https://acurazine.com/forums/search.php?searchid=894902


Didn't find a 3G DIY either.

fsttyms1

I dont know if there is a DIY. Its pretty straight forward. Take off the engine cover, use a metric allen wrench to remove the coil and remove the spark plugs. The rears are the same. If you have a type s remove the 2 bolts that hold the IMRC motor on and swing out of the way. Once thats out of the way the rears can be accessed easier. It helps having a 6" and a 3" extension for this job.

Munda

Thank you for all those who help others.
I just finished changing spark plugs. It was easier with 3" & 6" extensions, as advised earlier.
I wanted to share my experience with NGK-ZFR5FIX-11. i noticed they were all not gapped properly to the 0.44 as recommended. Also watch out for one of the vacuum lines that is in the way and got pulled, which I didn't notice, until after I drove and found the idle rougher.

Lydell Bryant

Thanks for the tread

01tl4tl

you will find the complete diy thread link on the main thread list for gen2
3rd line down
Offical DIY yadayada click it for list,,list is in 2 post so ck all out
enjoy!

Tebaz06TL

duly noted.

edm365f31

What Spark Plugs recommended for 4G?

Ed
2011 Acura TL Shawd

fsttyms1

You should probably ask in the 4g area, not the 2g.

Whisperhawk

I must agree with tophjoe that the rear three are a major pain. I ended up removing the the two bolts and swinging aside the IMRC toward the passenger side and the bolt for the power steering hose to free up movement as necessary.

acuratlsocal

Just change my spark plugs this morning.. It was a breeze. It took me 45 minutes to do all 6

Frank1212

Agree - 45 minutes about right on 03 TL.
Only had to use 9" extension on rear passenger side plug. Used 6" on other 5.

johngean

Changing plugs on 04 TL 3.2 - 162,000 miles. Found Oil in the chamber...but plugs were a liitle loose. Any thoughts on how bad this is? Also the little end of the coil ripped off - do you need that ,if so where can I get just that

Thanks