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Constant missfire


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I have put on here before about an intermittent missfire but just come off holiday and it is now constantly missing,

Eml light staying on and not drivable atall,

It's been into skoda twice for this intermittent problem but said nothing found,

If any damage has been cause now where would I stand? As surely if they done correct procedure as in check plugs/coils/leads they would find something suley?

Thanks in advance

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Welcome to the forum.

 

The Spark Plugs needing removing to see if 1 was burning up, and that might have been cylinder 3.

 

Was that done.?  

Did you ask, & were they changed?

??
Was it at a Skoda Main dealership?

 

How old is your car, how many miles, and have the spark plugs been changed ever,?

they do not last 40,000 miles, 

sometimes not even 20,000.

Edited by GoneOffSKi
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I'm not sure on what they done weather they just test drove it of if they actually removed the plugs, the plugs where changed about 5/6k ago to the ngk iridium ngk iex7? Something along those lines they where called, and car is on 21500 miles 2013 vrs

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You need to explain a bit more.

So it is a CTHE Engine.

 

Were the Spark Plugs changed under warranty @ 15,000 miles or so because of misfires.

This time was it in for a diagnosis under warranty again?

 

You need to find out tomorrow what they did this last time and ask them to confirm in writing what it was,

did they just run it on the diagnostics or were the 4 spark plugs inspected.

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No point guessing really, because the spark plug failing in one cylinder has happened in a few hundred of the under 3,000 twincharger Skoda in the UK.

Ignition coils do fail caused by the overheating spark plugs.

The professionals in any Skoda Dealership should well know what to check.

 

Sadly some just guess, and some say, nothing shows in the fault codes, which is true because there are not enough misfires in a cycle.

 

................

Best call Skoda Assist and have them send out a responder, they can arrange the car to be recovered & delivered to a Dealership and a courtesy car while you are without your car.

Tell them you are not prepared to drive it in limp mode even a short distance.

If there is an issue with that call Skoda UK Customer Services and have a Handler arrange the Warranty Repair of your car and delivery of a Courtesy Car or they can get a hire car until yours is suitably repaired.

Edited by GoneOffSKi
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No point guessing really, because the spark plug failing in one cylinder has happened in a few hundred of the under 3,000 twincharger Skoda in the UK.

Ignition coils do fail caused by the overheating spark plugs.

The professionals in any Skoda Dealership should well know what to check.

 

Sadly some just guess, and some say, nothing shows in the fault codes, which is true because there are not enough misfires in a cycle.

 

................

Best call Skoda Assist and have them send out a responder, they can arrange the car to be recovered & delivered to a Dealership and a courtesy car while you are without your car.

Tell them you are not prepared to drive it in limp mode even a short distance.

If there is an issue with that call Skoda UK Customer Services and have a Handler arrange the Warranty Repair of your car and delivery of a Courtesy Car or they can get a hire car until yours is suitably repaired.

 

Been reading the horrendous twin charger thread -  Does the spark plug issue affect the lower power turbo only engines. I've got a 30k miles 2014 CAXC and thus far fault free and I've never needed to top up with oil between services (I've chosen 10k). It's due another service about now and oil level bang on the max mark ?

 
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No.

The issue is the inlet design with the Twincharger and the heat that one cylinder can be subjected to.

The spark plug that fails can often show no misfires until underload with Supercharger & Turbo below 3,500 rpm.

 

The 150ps Twinchargers did not have the same issues as the 160ps, 180-185ps engines can.

http://revotechnik.com/support/technical/14tsi-twincharger-engine-issues

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Yeah sorry it's the cthe engine and no the plugs were changed out of my own option, and yes it was inspected under warrenty and also still has warrenty on the car so will be repaired under that also

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Make sure you ask then to keep all 4 plugs and coils for you.

Best call them and be sure they understand that.

 

They will say that they are being done under warranty and you can not have them though.

*If you paid to get the plugs changed at 15,000 miles then they are yours.*

 

?

Why did you have to tell them to replace them this time, the Master Tech surely knew that.

Or are the 6,000 mile old plugs OK so not being changed under Warranty & you are paying for them again?

?

Did they diagnose cylinder 1&2 with the Misfire Codes before the Spark Plugs had even been out.

 

The engine had shut down 2 cylinders because of the misfires.

New plugs 6,000 miles ago and now Coils @ 21,500 miles.

 

They need to do a Software Update on your car probably.

?

When was your 2013 CTHE built.?

 

There is an orange sticker on the drivers side of the engine.

Or just when was it first registered?

Edited by GoneOffSKi
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Yeah the cars a cthe and I don't me the plugs myself 5/6k ago and I have asked them to keep them so I can check them to see what condition they are in, and I have got to pay for this to be done as the coils where damage so there not covering it by Warrenty which I'm not to bothered about I would rather just pay and get it all done fresh 4 coils and 4 plugs

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Do not pay for the ignition coils.

 

There is an issue a warranty issue.

 

You have an early CTHE and these had issues.

 

Get a case raised with Skoda UK, and see about the Dealership sending the Coils to Skoda if the Master Tech is not prepared to try a Warranty Claim.

 

The early demise of Spark Plugs might cause the Coils failure, or poor coils fitted OEM.

They certainly should not be going, 

and you should not need a 2nd set of Spark Plugs at 21,500 miles.

 

If Skoda UK need your car checked or the coils then they have experts that can do this.

You say you have had issues, so have Skoda UK or Skoda CZ address the issues.

Check components, software, and importantly who is working on your car and if the are Trained & Qualified.

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The thing is when I changed the plugs I chipped The casing of the coils and there saying they cannot replace under Warrenty and some one had been and removed them, and I'm just getting changed a a peice of mind over anything because I hate having the little thought in the back of your head if you know what I mean

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I understand now.

What were your plugs like when you changed them last time, and did you check the gap of the ones you put in?

 

Please let us know what they are like when you get them back after they are changed.

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Yeah will do and the originals I pulled out where quite burnt so will have a look at the one that come out next, but surely when the car missfire is Can't be good for the plugs?

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It is very bad, and can be fatal for the engine when under load & when giving it some.

 

If you are lucky and misfires register the Turbo is disabled and 2 cylinders can shut down.

This is to save destruction.

Not good if in the outside lane of an upslope driving spirited.

http://revotechnik.com/support/technical/14tsi-twincharger-engine-issues

The CTHE should have had the issues resolved when Skoda fitted these engines, but early Engine Management (Maps)

were causing issues still and some owners were told there was no Software Update while others were having an Update carried out.

 

?

Has your car had a software update at any time when in for a service?

?

What issues have you had with the car, just misfires?

?

Do you run it on Super Unleaded?

Edited by GoneOffSKi
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Yeah all software updates done and run it on 99 or vpower only! And just misfires only now and again until the other day when it was happening constant, but didn't drive it anyway! It got recovered to the garage

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