I own an 2019 Octavia 1.5tsi act dsg se, 30k on the clock, fdsh. 

My ecu light came on this morning and stayed on. 

Checked the battery, it's OK and it's charging OK.

Got out my trusty generic code reader, came up with p0300, 302 and 303. So my guess new coil pack required. 

Fortunately (I hope), I've took out the Skoda all in service and warranty plan.

I'm booking it in for an diagnostic, initially at my expense, my fingers are crossed.

Owned the car a year now, so far its had a new battery (I paid), rear wiper motor (paid for under dealer extended waranty), rear brake pads and discs, I changed them. 

Anyone have any further ideas on possible fault cause? 

Edited 22 September, 20232 yr by Phoenixboy

 

What's the engine code? (alphabetic characters at start of engine number on V5c)

Does it have one coilpack per spark-plug, or one module that feeds all four?

Seems odd that two individual ones would fail simultaneously (if that's what it has).

Edited 22 September, 20232 yr by Breezy_Pete

The Spark Plug replacement by Skoda recommendations, guidelines or even schedule is at 40,000 miles / 4 years.

 

Being a ACT i would at least be inspecting them.

Since taking them out on a 4 year old car likely replacing them.

18 minutes ago, Breezy_Pete said:

 

What's the engine code? (alphabetic characters at start of engine number on V5c)

Does it have one coilpack per spark-plug, or one module that feeds all four?

Seems odd that two individual ones would fail simultaneously (if that's what it has).

Also come up with random missfires, reason I suspect coilpacks.

I have the skoda extended warranty, so I'm booking my car in for a diagnostic. 

 

17 minutes ago, toot said:

The Spark Plug replacement by Skoda recommendations, guidelines or even schedule is at 40,000 miles / 4 years.

 

Being a ACT i would at least be inspecting them.

Since taking them out on a 4 year old car likely replacing them.

Plugs were changed last year my Skoda main dealer at 22k, car now covered 30k. 

Edited 22 September, 20232 yr by Phoenixboy

@Phoenixboywhy were they replaced then was it at your request, was there a fault code then when on the diagnostics.

 

They maybe need changing again, they should not but they could need checking. 

Failing plugs can cause premature ignition coil failure. 

 

That ENGINE light is the Exhaust Emissions light and even a engine fart can have that come on.

There is the EPC light as well which a Misfire might have come up, if enough misfires in a cycle, and they can log.  Needs a proper reader.

57 minutes ago, Phoenixboy said:

Anyone have any further ideas on possible fault cause? 

 

51 minutes ago, Breezy_Pete said:

What's the engine code? (alphabetic characters at start of engine number on V5c)

Does it have one coilpack per spark-plug, or one module that feeds all four?

 

If you ask us to speculate on what may be the cause, it might be helpful if you answer any questions that could help?

 

22 minutes ago, toot said:

@Phoenixboywhy were they replaced then was it at your request, was there a fault code then when on the diagnostics.

 

They maybe need changing again, they should not but they could need checking. 

Failing plugs can cause premature ignition coil failure. 

 

That ENGINE light is the Exhaust Emissions light and even a engine fart can have that come on.

There is the EPC light as well which a Misfire might have come up, if enough misfires in a cycle, and they can log.  Needs a proper reader.

I had the plugs replaced at my request, no faults. 

Yes I know what you mean about a decent reader, but I have the warranty, otherwise I probably would have bought one. 

Edited 22 September, 20232 yr by Phoenixboy

12 minutes ago, Breezy_Pete said:

 

 

If you ask us to speculate on what may be the cause, it might be helpful if you answer any questions that could help?

 

G022H722

I'll check under the engine bay for the coilpack or packs. 

I'm no vag expert, looks like single coilpacks, bit hard to see with the plastic cover on. 

Thanks. 

Edited 22 September, 20232 yr by Phoenixboy

2 minutes ago, Phoenixboy said:

G022H722

That doesn't look like an engine code. There may be a sticker on the cambelt top cover with engine number on, as well as it being on the V5c.

I think it will be three or four letters starting with a D.

Just helps me maybe find a wiring diagram, which would answer the question about the coilpacks.  The only 1.5 diagram I've found so far, for DADA and DPCA codes fitted to Superbs in 2019 suggests individual coilpacks.

3 minutes ago, Breezy_Pete said:

That doesn't look like an engine code. There may be a sticker on the cambelt top cover with engine number on, as well as it being on the V5c.

I think it will be three or four letters starting with a D.

Just helps me maybe find a wiring diagram, which would answer the question about the coilpacks.  The only 1.5 diagram I've found so far, for DADA and DPCA codes fitted to Superbs in 2019 suggests individual coilpacks.

I took it from engine code on the v5. Do you mean chassis number? 

I'll have a look on the Cambelt cover. 

As I've had generic codes relating to multiple missfires, maybe not be a coilpack then? If they are single packs. Cars still driving A1. 

Edited 22 September, 20232 yr by Phoenixboy

Just now, Phoenixboy said:

Do you mean chassis number

Nope, but I could look it up from that.

5 minutes ago, Breezy_Pete said:

Nope, but I could look it up from that.

That any good? 

Also pic from rear of engine cover. 

 

Edited 22 September, 20232 yr by Phoenixboy

Yep, DAD is the three letter version of your engine code, on the bottom row.  The fourth letter usually is a power variant so A for lowest power of that code, B for next one up, etc.

Handily, that's a match for the diagram I mentioned above, so confirms individual coilpacks.

 

It seems very unlikely to me that two of those could have failed simultaneously, so I'd suspect something probably unrelated to ignition.

Please update us with what Skoda find. 

7 minutes ago, Breezy_Pete said:

Yep, DAD is the three letter version of your engine code, on the bottom row.  The fourth letter usually is a power variant so A for lowest power of that code, B for next one up, etc.

Handily, that's a match for the diagram I mentioned above, so confirms individual coilpacks.

 

It seems very unlikely to me that two of those could have failed simultaneously, so I'd suspect something probably unrelated to ignition.

Please update us with what Skoda find. 

I'm hoping it's something easily diagnosed by them. Only had the warranty now for just over a month, if it had been under a month, I would have not been able to make a claim. 

Rung my local dealership up to book in for an diagnostic, sorry we are too bust to talk, someone will ring you later.

Thanks for your help. 

1 minute ago, Phoenixboy said:

Only had the warranty now for just over a month, if it had been under a month, I would have not been able to make a claim

Well played! 

You can probably take it to another dealer if they come back with "Just after Christmas" or some such helpfulness...

6 minutes ago, Breezy_Pete said:

Well played! 

You can probably take it to another dealer if they come back with "Just after Christmas" or some such helpfulness...

I moved over to Vag after many years of Vauxhall/Stellantis rubbish hoping for better reliability.

Vauxhalls up until around 10-15 years ago were very reliable. 

You can sit with the engine idling and end up getting an Engine / Exhaust emissions light come on.

It really is no biggy.

 

Are you using E10 or E5 just now and is the car doing a few miles from each cold start?

 

The next thing is that the TSI,s have a GPF, not much of an issue being reported yet with 3 or 4 year old cars but time will tell as time passes and maybe with cars not doing many miles.

A GPF gets cleaned out differently from a DPF at a different heat and when the car is off the accelerator.

35 minutes ago, toot said:

You can sit with the engine idling and end up getting an Engine / Exhaust emissions light come on.

It really is no biggy.

 

Are you using E10 or E5 just now and is the car doing a few miles from each cold start?

 

The next thing is that the TSI,s have a GPF, not much of an issue being reported yet with 3 or 4 year old cars but time will tell as time passes and maybe with cars not doing many miles.

A GPF gets cleaned out differently from a DPF at a different heat and when the car is off the accelerator.

No the ecu light is on permanently.

Regarding fuel I use a mixture of petrol types, mainly whichever was handy at the time. I tend to use e5 over the winter tike as my car is smoother from a cold start. As well we know the kangerooing effect with this engine. 

I do get the odd s/s light illumination prior to starting (only occasional), but my battery is good. Don't think that's related though. 

Most of my journeys are 10 miles plus, engine warms up quickly. Happy generally with it so far and it's good on fuel. 

Edited 22 September, 20232 yr by Phoenixboy

Have a look in the Air Filter box and see if clean and dry.

37 minutes ago, toot said:

Have a look in the Air Filter box and see if clean and dry.

I'll do that once it stops raining. 

Just started my car again, ecu light now flashing, before it was static, s/s light on as well, engine sounded rough, screeching type of sound as I was walking to my garage for my code reader. Got back to the car, ecu light now not illuminated. Checked with code reader again, same codes displayed, buy one now saying fault now there on start up. Engine sounds OK, but maybe slightly lumpy on tick over. 

I've restarted it a couple of times since, ecu light out, but I have a start and stop system error that comes up just after I start the car, then it goes off again. 

If it was fuel related I'd have thought the issue would have occurred soon after I'd filled up, but I've covered 100 miles since I last filled up, problem has just occurred since this morning. 

When the ecu light was actually flashing the engine sounded like a bag of hammers. 

1 minute ago, Phoenixboy said:

When the ecu light was actually flashing the engine sounded like a bag of hammers

That's probably a full shutdown of a cylinder (or more), to prevent unburnt fuel causing trouble with emissions kit downstream.  

Pass all this info to Skoda when you do speak to them, it might mean the car should be uplifted there rather than driven there. How far away is dealership?

 

1 hour ago, Breezy_Pete said:

That's probably a full shutdown of a cylinder (or more), to prevent unburnt fuel causing trouble with emissions kit downstream.  

Pass all this info to Skoda when you do speak to them, it might mean the car should be uplifted there rather than driven there. How far away is dealership?

 

I eventually got through to a decent dealership, first one I rung said I'd have a 5 week wait for the diagnostic.

Rung another, advised me to ring Skoda Assist (AA), as its part of my 'all in plan', which I've just done. Should be with me within the hour, hopefully they'll be able to diagnose the issue, maybe transport my car to a dealership if required. 

Well done. Fingers crossed.