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repeated ignition coil failures after spark plug change in service ??


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johnnally
New User

Jan 24, 2017, 12:47 PM

Post #1 of 4 (862 views)
repeated ignition coil failures after spark plug change in service ?? Sign In

Hi,

My car is a 2007 Skoda Oktavia 1.4 L.
It has just over 100,000 km.

I recently left my car into be serviced and as the car was over 100km, I decided to get the spark plugs replaced also.
The mechanic at the time showed me the old spark plugs and said they looked good and said my car is running efficiently, but i decided to change them as I read after 100km it is good to change them.
A few days later after driving ~150km since the service, the engine light came on.
The car was loosing power it was very clear.
I brought the car back to the mechanic and they ran a computer check.
It was engine code P0302 if I remember correctly (faulty ignition coil in 2nd slot).
They replace this part and the engine light went off.
A few days later after another ~150km the engine light has come back on with the engine light, and exact same symptoms.
I am scheduled to bring this back to the garage tomorrow.
I've read that the number one cause of ignition coil failure is faulty spark plugs or due to bad gap spacing between the spark plugs/coils? Is this correct?
Does this sound like the spark plugs they installed in the car during the service is causing issues with the coils?
Is there any other common root causes for this happening?
Before the service I never had any issues like this before.


Thanks in advance for your help/opinion.

John


(This post was edited by johnnally on Jan 26, 2017, 3:58 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 25, 2017, 1:09 AM

Post #2 of 4 (823 views)
Re: repeated ignition coil failures after spark plug change in service ?? Sign In

Welcome. Please know this is a US based site and most specific info to this car unavailable as it's not sold to the US.


Seems like coil over spark plug type ignition type of set up and failed being touched.
Reasons include, wrong spark plug type, improper handling of wires if applicable or parts to do this?
A bad new part still in question as well.


You said you were and do take it back. Request knowing spark plugs are exact type specified for this car and just let the mechanic/tech
deal with it as in my opinion that shop or technician owns* this problem at least to some degree,


T
* means they have responsibility for it...............



johnnally
New User

Jan 26, 2017, 3:53 AM

Post #3 of 4 (800 views)
Re: repeated ignition coil failures after spark plug change in service ?? Sign In

Thanks Tom,

I brought the car back today to the garage.
The error code this time was P0301 (first cylinder ignition coil failure).
They replaced the 4 spark plugs (same model though as they installed in the service). The spark plug model type is NGK ZFR6T-11G.
I googled this model and can see websites stating these plugs are compatible with a skoda octavia 2007 1.4L.
They also replaced the faulty ignition coil .
They didn't charge me for the labour or for the plugs, but charged me for the coil.
They said that the other two coils may go in the future also.
So I guess I will wait and see what happens.


(This post was edited by johnnally on Jan 26, 2017, 3:56 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jan 26, 2017, 4:02 AM

Post #4 of 4 (786 views)
Re: repeated ignition coil failures after spark plug change in service ?? Sign In

OK - Sounds pretty good. This is where routine work on a specific car is so hard to know if you've never seen one or do this job all the time. Coils can be a common item to go like that or not. At least codes are telling you and it's fine for now I guess so I might just let some time go by?


I do not know of a known life expectancy for a common coil being a wearing item. Some very well could be exposed to conditions that do bother them some last forever - this I can't say.
If it happens to same one again then the tech really needs to find out why..........


T







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