Guys,

what is the life span for Rx8 coils ?

do we have any info?

Guys,

what is the life span for Rx8 coils ?

do we have any info?

I can tell you first hand that the original coils released with the car in the 04 model don't last long. I replaced mine with the updated ones at 8k. So far so good with the updated coils though.

Technically the ignition coils should last the lifetime of the car. Coils have no moving parts and consequently have nothing to wear out. In the hostile environment of the engine bay properly designed coils should have no problems. Apparently the coils used on the RX-8 are prone to failure due, I believe, to inferior quality build. It appears that the insulation breaks down causing the coils to short/ground on the high tension side. There is no way of knowing if or when a coil will fail. Mazda say they have a new and better coil, but I personally cannot verify this and I believe it is early days for any of the new coils to start failing. Time will tell.

I can tell you first hand that the original coils released with the car in the 04 model don't last long. I replaced mine with the updated ones at 8k. So far so good with the updated coils though.

My 8 was built 5/2003 and I have 92,000 miles on the original coils.

They are cheap...and appear to fail often before 50K miles.....I just bought a set shipped for $109US........about the same price as new plugs

I'm going to replace mine every 50K, for $100, why the hell not.

Mine failed at 42k miles but I'd bet they were degraded way before then. I noticed a big difference with the new coils. My 8 is an 06/03 build date.

I have 41K miles and still on original coils. At 50k I'll replace them. Only $100 like others said- they're cheap

mine failed at 8k (or around there) as I mentioned above. The car sat for almost a year before I bought it. Although that should have no impact on it. I bought it with the 8k miles on it and the coils were bad when I got it. Dealer replaced them, huge improvement.

nice.. i got the general idea..

it depends on the condition that you're running your coils @

70k miles on them. still no issues.

beers :beer:

very nice...

Mine new and improved coils are showing the little white spots at about 15k. I suppected them to be bad again because my car died while at a red light last week. I took it in and am currently waiting on my new engine to arrive. Guess it wasn't the coils that caused the engine failure.

Mine new and improved coils are showing the little white spots at about 15k. I suppected them to be bad again because my car died while at a red light last week. I took it in and am currently waiting on my new engine to arrive. Guess it wasn't the coils that caused the engine failure.Mazda service manual/TSBs (forget exactly which) say that the white spots on the coils are not indicative of coil performance (i.e. you can have a perfectly fine coil with white spots).

I've been through 3 or 4 sets over the last 52k miles.
However, only 3 or 4 of them actually failed completely on their own and I burned 4 of them by just being bone-headed (I had my ignition control jumpered for 12v instead of 5v - they lasted exactly zero seconds; at least they were already old).
So, I've had half of my coils become marginal and the other half failed, more or less.

I thought this http://www.rx8club.com/showthread.php?t=113744&highlight=testing+coil blast from the past was relevant to the converstion.

"Blast from the past"? That is a current thread.

well, blast from the recent past. Either way, its good reading. Its good to know that even if a coil sneaks by the ol multimeter, it still may be underperforming.

or failing the multimeter but the car still loves them :Eyecrazy:

^^ True, though that is pretty rare. Furthermore, if you really press those coils (hot day, drag racing, etc.) they will probably give up on you at a rather inopportune moment.
Most of the time when it seems like the car "loves" those coils, its because they are the trailing which won't be felt by the driver until they actually do fail and kill the idle quality.

its been a week now that my car has a problem with coils a & c and i havent noticed any loss of power or difference.

Will it take longer to make a difference?

There was a study that a typical new born human *should* have 250 years of life.

but .... who the fuxk actually have 250 yrs of lfe? cuz it depends on TONS of factors.

so just buy new coils. replace them, be happy, just like me. :)

Your CEL code wasnt even the valid code. make sure u got the right one dude.

thanks but, two diagnostic tools would lie ? or my car went crazy ? :P

now ok, i have the burnt coils symptoms and both DT are saying about the coils/coils circuit, i am convinced that i have to replace them.

dude, but the thing is that the codes that you posted werent valid. at least according to the service manual.

thats why u should've double check b4 u got ur coils.

I got a new set of coils, tested them with multimeter - and they all failed. Have been using them over 1 month already, redlining daily, no problems in idling nor redlining...

what i am saying is that i have doubled checked it with two different diagnostic tools.

I switch the check engine light off and it comes up with same codes.
Both diagnostics show the same.
I ve sent an ime to linearlogic (scangauge2) and they told me that these codes for this car model means Coils A & C circuit, just like the second handheld diagnostic tool that i have used.

I got a new set of coils, tested them with multimeter - and they all failed. Have been using them over 1 month already, redlining daily, no problems in idling nor redlining...

You used the wrong polarity on the multimeter.

:lol2: nope even tried switching polarity, and all possible combinations as couldn't believe my eyes

So, what were the actual numbers?

what is the standard for new coils?

guys,

i have replaced coils and all are fine now,

P0351 P0353 stand for A & C coil circuits.

my mm readings:

as in http://www.rx8club.com/showpost.php?p=1775879&postcount=27

A-B around 1.6kOHM
B-C open circuit (this is abnormal acc. to the workshop manual)
C-A open circuit

and after finally succeeding to start the car, my scanner (OBDScan-APEX) didn't find any codes... and the car still runs nicely :)

Either your B-C check was done with the VOM in the wrong polarity or incorrectly via some other means because an open in that position will absolutely stop the coil dead.

63k on my '04 manual. I started the motor last week and it sounded like there was a hole in the muffler or something and the Check-Engine light came on. The engine smoothed out when it warmed-up, but the dealer said the coils were shot.

70k miles on them. still no issues.
04 model here too with 70K+ miles on stock coils. No problems. *knocking on wood*

04 model here too with 70K+ miles on stock coils. No problems. *knocking on wood*
I'm with ya! 65k on the stock coils

boooo just got my new coils for 110$..................04 at 43k miles.....coils shot completley

which codes shall we get for burnt COILs ?
coz mine are invalid P0351/P0353, which are the valids?

http://www.rx8club.com/showthread.php?t=26291

those are the codes we have for the rx8 in the usa... i thought we have been here before..

as a note i dont know of anyone getting a code for a bad coil that is was makes it so hard to diagnose.

beers :beer:

2005 model, Dec/2004 build, still on the original coils

^^ ya...but how many miles have you driven the White Rocket...I think I had more miles on mine in the first 2 weeks I had it :D:

changed my coils couple K miles ago (dont remember the exact mileage now)

it idles smooth and stuff. Im keeping it (I still have the old coils around in case something happens)

Where is the cheapest place to buy coils?

rosenthal mazda

http://www.finishlineperformance.com/store/home.php?cat=273

Guys,

what is the life span for Rx8 coils ?

do we have any info?

Here is some coil "Info" worth reading............

>>> 13B-MSP coil thread <<< (http://www.rx8club.com/showthread.php?t=131476)

REgards

I have my car at the dealership replacing the engine...yea engine flood. well they just called me and said the coils are not covered under warranty. So they want to charge me $319 for parts, installation, labor, and taxes.
My question is would it be bad if I drove my vehicle 4 miles from the dealership to my house and just replaced them myself?
They said my coils are bad....I just want to know if those 4 miles is going to damage my car...
Thx!

No... Im sure they were bad for many more miles before the 4 youll have to drive it home, and no harm was done then.