DIY: Mazda Ignition Coils (with pics)
07-16-2009, 07:13 PM
#1
DIY: Mazda Ignition Coils (with pics)
since i read all over the forum that people dont know how to change out coils, heres my very own DIY
first of all, for those of you that dont know where they are, they're located right underneath the airbox/intake tube, this is what they look like
for those of you with the stock air box, that will need to come out first, i have the k&n intake so it was much easier for me to get to.
Dont forget to unplug your battery first, just to be on the safe side
things you will need.
1. a ratchet
2. a 10mm socket
3. an extension (long enough so that it can reach the nuts)
4. coils
5. beer of choice (not necessary)
aright now open your hood and locate your coils like so
now unplug the spark plug wire, it should come out with ease. should look something like this
now with the ratchet and 10mm socket attached to your extension, remove the nut like so, remember this nut is small so i suggest loosening it up then removing it with your fingers, because if you drop it and lose it, well your *** out and then you need to make a trip to your local auto parts store.
i suggest you put the nut in a safe spot where i wont get lost, and have it next to you for easy access
now remove the coil from the bolt and unplug it from the back, simple clip just needs to be pinched
new coil VS old coil, this is what mine looked like
plug the new coil in and put the coil back on the bolt and tighten like so, i tightened it a little over hand tight about 5-10 pounds, not too much
put the wire back on, and continue to the next one, only doing one at a time so you dont get them mixed up
repeat the same process for all four and you should have em in, in no time!
first of all, for those of you that dont know where they are, they're located right underneath the airbox/intake tube, this is what they look like
for those of you with the stock air box, that will need to come out first, i have the k&n intake so it was much easier for me to get to.
Dont forget to unplug your battery first, just to be on the safe side
things you will need.
1. a ratchet
2. a 10mm socket
3. an extension (long enough so that it can reach the nuts)
4. coils
5. beer of choice (not necessary)
aright now open your hood and locate your coils like so
now unplug the spark plug wire, it should come out with ease. should look something like this
now with the ratchet and 10mm socket attached to your extension, remove the nut like so, remember this nut is small so i suggest loosening it up then removing it with your fingers, because if you drop it and lose it, well your *** out and then you need to make a trip to your local auto parts store.
i suggest you put the nut in a safe spot where i wont get lost, and have it next to you for easy access
now remove the coil from the bolt and unplug it from the back, simple clip just needs to be pinched
new coil VS old coil, this is what mine looked like
plug the new coil in and put the coil back on the bolt and tighten like so, i tightened it a little over hand tight about 5-10 pounds, not too much
put the wire back on, and continue to the next one, only doing one at a time so you dont get them mixed up
repeat the same process for all four and you should have em in, in no time!
Last edited by dozer; 07-16-2009 at 07:16 PM.
The following 3 users liked this post by dozer:
07-16-2009, 07:22 PM
#2
I don't know what I liked better - the ratchet "extension" or the 40.
Mod Edit..
An easy way to identify IF the Coils you purchased are actual OE...
On the side of the black Coil there are three rows of text information stamped into (concave) the coil body, first line is Mazda part number.
Anything else is a knock off product (some on eBay and others)...not originals and can give performance/reliability issues.
Generally if they are dirt cheap they are not OE.
ASH8
Mod Edit..
An easy way to identify IF the Coils you purchased are actual OE...
On the side of the black Coil there are three rows of text information stamped into (concave) the coil body, first line is Mazda part number.
Anything else is a knock off product (some on eBay and others)...not originals and can give performance/reliability issues.
Generally if they are dirt cheap they are not OE.
ASH8
now im ready to do my coils this weekend..... dont know where to find the 40 of OE though, the ghetto is to far to drive to 
08-11-2009, 05:16 PM
#25
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I just did this today man it was easy. My car was log overdue for new coils I have noticed a MUCH bigger low end torque improvement. My only question is why did I not change them sooner.