DIY: Mazda Ignition Coils (with pics)
11-18-2009, 01:12 PM
#52
Your's and Dozer's Reader's Digest responses would have I'm sure been adequate, but snce this is already an excellent DIY by Dozer, and moreso because I appreciate g0rdon's, or anyone's, willingness to learn, I figured I'd give him a wee bit more. 
11-21-2009, 12:46 AM
#53
Super Moderator
Just for those who want to know "which" original Mazda factory ignition coils they have in their RX-8...
These dates are date of Build/Production...
#N3H1-18-100 were used from Start (2003) of the RX-8 up to February's end 2006.
#N3H1-18-100A were used from March 1st, 2006 Build Date to November 30th, 2007.
#N3H1-18-100B were used from December 1st, 2007 ONWARDS... (including Series II RX-8's)
The B Coils are the latest and is sold to fit all RX-8's...
These dates are date of Build/Production...
#N3H1-18-100 were used from Start (2003) of the RX-8 up to February's end 2006.
#N3H1-18-100A were used from March 1st, 2006 Build Date to November 30th, 2007.
#N3H1-18-100B were used from December 1st, 2007 ONWARDS... (including Series II RX-8's)
The B Coils are the latest and is sold to fit all RX-8's...
11-25-2009, 11:40 AM
#55
Just for those who want to know "which" original Mazda factory ignition coils they have in their RX-8...
These dates are date of Build/Production...
#N3H1-18-100 were used from Start (2003) of the RX-8 up to February's end 2006.
#N3H1-18-100A were used from March 1st, 2006 Build Date to November 30th, 2007.
#N3H1-18-100B were used from December 1st, 2007 ONWARDS... (including Series II RX-8's)
The B Coils are the latest and is sold to fit all RX-8's...
These dates are date of Build/Production...
#N3H1-18-100 were used from Start (2003) of the RX-8 up to February's end 2006.
#N3H1-18-100A were used from March 1st, 2006 Build Date to November 30th, 2007.
#N3H1-18-100B were used from December 1st, 2007 ONWARDS... (including Series II RX-8's)
The B Coils are the latest and is sold to fit all RX-8's...
11-27-2009, 02:19 AM
#57
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I just changed out my coils, wires, and plugs yesterday and it was a knuckle beating job but, can be done with patience. I had more problems taking off the RB intake than the coils themselves but those tiny screws are easy to drop and get caught by the bottom pan that I had to unbolt to find the little thing. Thanks for the DIY. 
11-27-2009, 02:25 AM
#58
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so far running like a champ.
12-09-2009, 10:10 AM
#60
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First: Seems that to post here, I must have a picture of a girls *** as an avatar. I'll get to work on that... 
But, must I get OEM Ignition Coils from a Mazda parts shop? Or can I call Advanced Auto Parts and get the coils they have in stock?
But, must I get OEM Ignition Coils from a Mazda parts shop? Or can I call Advanced Auto Parts and get the coils they have in stock?
12-10-2009, 03:13 PM
#63
Administrator
iTrader: (7)
On my car it was not that. From the front of the car going to the back, the first coil was L1, second was T1, third was L2 and last was T2. (hope i remembered that right) pretty sure that is what it was. I only had one coil to have a white spot on it and the other 3 didnt. My car was running fairly well at the time and just had all the fluids changed in it Monday for the second time since I bought the car new. Every 30k miles, I have everything changed. so far running like a champ.
so far running like a champ.Here's a diagram.
Coil / Spark plug configuration
12-18-2009, 09:06 PM
#68
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This is the Part Number...they are around the $30 mark EACH..
N3H1-18-100B9U
03-14-2010, 10:48 PM
#71
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http://www.oreillyauto.com/site/c/de...X-8&vi=1416844
Are these coils from O'Rielly sufficient?...or should I just go to my dealer...or doesn't it matter? Autozone's website charges 88.99 EACH and yes...I called to confirm. Why the hell are theirs almost 3x more?
UPDATE: I called the 2 dealers nearest to where I work today and one wanted 87.99 EACH and the other wanted 54.99 EACH. WTF!?
Last edited by 77mjd; 03-15-2010 at 07:40 PM.
03-21-2010, 02:59 PM
#75
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