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Discussion Starter · #1 ·
My kid's Cube threw a misfire code. I reset it a few times to see if it would go away. It came back every time. I ordered plugs and coils. While waiting on the coils, I decided to change the CVT fluid and coolant. I did reset the error code before this service. It's been almost 2 weeks and the misfire code hasn't come back. Coincidence? I'm not a mechanic and I can't see how the two are related. Thoughts?
 

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My kid's Cube threw a misfire code. I reset it a few times to see if it would go away. It came back every time. I ordered plugs and coils. While waiting on the coils, I decided to change the CVT fluid and coolant. I did reset the error code before this service. It's been almost 2 weeks and the misfire code hasn't come back. Coincidence? I'm not a mechanic and I can't see how the two are related. Thoughts?
How many miles on your cube? And any like hesitation or noise coming out of your exhaust
 

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Discussion Starter · #3 ·
How many miles on your cube? And any like hesitation or noise coming out of your exhaust
110K and exhaust sounds fine. On occasion right at start up there’s a brief hesitation (or feels like a misfire) but goes to normal idle quickly. I did install new plugs and new ignition coils last weekend. After that the start up was strong. The old plugs only had 20K on them but looked like they were burning hot. The white ceramic was yellowed around the edges. The ignition coils looked fine but I replaced them as well.
 

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110K and exhaust sounds fine. On occasion right at start up there’s a brief hesitation (or feels like a misfire) but goes to normal idle quickly. I did install new plugs and new ignition coils last weekend. After that the start up was strong. The old plugs only had 20K on them but looked like they were burning hot. The white ceramic was yellowed around the edges. The ignition coils looked fine but I replaced them as well.
At over 100k I know that ignition coils should be replaced, you cant tell visibly if theyre bad or not from all the research I did, So Im pretty sure the ignition coild must have gone bad, My 2010 cube had over 100K and I started having misfire check engine light when i used a scan tool. The plugs only had about 10k When I replaced them but looked burned out. So I replaced mine with hitachi coils which are used in most japanese cars as OEM and also Denso uridium plugs which are the OEM Plugs used on a cube. All problems were solved after that,
Im pretty sure your ignition coils were bad. Since average they last 100k. Did you replace you plugs with OEM iridium Denso plugs? Denso claims that they last up to 120k
 

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Discussion Starter · #7 ·
At over 100k I know that ignition coils should be replaced, you cant tell visibly if theyre bad or not from all the research I did, So Im pretty sure the ignition coild must have gone bad, My 2010 cube had over 100K and I started having misfire check engine light when i used a scan tool. The plugs only had about 10k When I replaced them but looked burned out. So I replaced mine with hitachi coils which are used in most japanese cars as OEM and also Denso uridium plugs which are the OEM Plugs used on a cube. All problems were solved after that,
Im pretty sure your ignition coils were bad. Since average they last 100k. Did you replace you plugs with OEM iridium Denso plugs? Denso claims that they last up to 120k
I went ahead and changed coils and plugs. Keep in mind I did this 25K miles ago. The coils looked fine but they were bought from eBay. I have a suspicion that they were fakes NGK’s because the replacements were bought from Jegs (same part number) and the badging and even the quality seems a world apart.
 

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I went ahead and changed coils and plugs. Keep in mind I did this 25K miles ago. The coils looked fine but they were bought from eBay. I have a suspicion that they were fakes NGK’s because the replacements were bought from Jegs (same part number) and the badging and even the quality seems a world apart.
Ya I will never buy certain parts on ebay ever again, I had bought some oem denso iridium spark plugs on ebay and they only lasted 10k. I had read that lot of
knock offs. Never on electronic parts ever rather pay the extra and get the genuine.
 

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Discussion Starter · #9 ·
Ya I will never buy certain parts on ebay ever again, I had bought some oem denso iridium spark plugs on ebay and they only lasted 10k. I had read that lot of
knock offs. Never on electronic parts ever rather pay the extra and get the genuine.
I actually think the Denso plugs that I bought off eBay were fakes too! They looked bad, way worse than the original plugs I replaced at 80K. The new plugs were bought from Jegs too.
 

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I actually think the Denso plugs that I bought off eBay were fakes too! They looked bad, way worse than the original plugs I replaced at 80K. The new plugs were bought from Jegs too.
I actually think the Denso plugs that I bought off eBay were fakes too! They looked bad, way worse than the original plugs I replaced at 80K. The new plugs were bought from Jegs too.
I bought new denso plugs from autozone and got hitachi ignition coils, just the plugs alone cost me almost $80 but at least they were genuine, the cube drives like a dream after
replacing both and felt like I had more power, Im sure from the plugs all working properly. I had read that a lot of cars use hitachi coils as oem
 
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