Marx8nka

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...

titaniumgr3y

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.

MazdaManiac

iTrader: (3)

You used the wrong polarity on the multimeter.

Marx8nka

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

MazdaManiac

iTrader: (3)

So, what were the actual numbers?

titaniumgr3y

what is the standard for new coils?

titaniumgr3y

guys,

i have replaced coils and all are fine now,

P0351 P0353 stand for A & C coil circuits.

Marx8nka

my mm readings:

as in https://www.rx8club.com/showpost.php...9&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

MazdaManiac

iTrader: (3)

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.

NEWireless

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.

crimson-rain

04 model here too with 70K+ miles on stock coils. No problems. *knocking on wood*

wisconsinben

I'm with ya! 65k on the stock coils

DanRedRx8

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

titaniumgr3y

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

swoope

iTrader: (5)

https://www.rx8club.com/series-i-tech-garage-22/rx-8-technical-info-cel-codes-pcm-pin-list-collision-guide-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

TeamRX8

iTrader: (25)

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

dannobre

iTrader: (3)

^^ 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

nycgps

iTrader: (1)

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)

Rotary Rasp

iTrader: (2)

Where is the cheapest place to buy coils?

kersh4w

iTrader: (3)

rosenthal mazda

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

DMRH

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

>>> 13B-MSP coil thread <<<

REgards

mestaboy04

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!

ndhoffma

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.