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20 minutes ago, Mikerp said:

As I said earlier I am taking it to my go to garage. I don't imagine they will get any codes as it resets every time you turn the car off. I will get them to change the plug and the coil pack. What about the lead?

Do not put too much faith in error codes or error codes being recorded.  The error codes are only pointers, sometimes  more exact than others, but codes have to be interpreted and used as part of further diagnosis - this is where some 'mechanics' may fail where proper trained (and can-be-arsed, or allowed to by garage) Technicians can sort matters.

 

Having said that, your scan tool looks lower level a higher level should see more codes and perhaps stored historical codes.  You'd think a Dealer level tool would be at the top, if they have one, or perhaps they only have one scanner and two or more cars need it or there's only one guy (rarely a woman unfortunately) that's trained to use it, or they're on holiday/sick/training or left the company,  I never understand why the Dealership doesn't make a show of using multi-thousands pounds of scan tool with a fully trained Technician interpreting the information - or perhaps I do.

 

Scan tools costing only hundreds of pounds can bring up loads of information on cars you've never heard of going back 15 years, and VW/Skodas so the Dealership tool ought to be VW all bells and whistles and be all singing and dancing and almost tell you the last time the fag lighter was used.  My neighbour's non-pro scanner has IIRC 638 points to the engine on my wife's Fabia, can do live data streams comparing various items as you drive, freeze frame so you can look at everything at a point when a fault occurs.  So the Dealership should be able to do that plus have a human to detect what the computers can't/don't and do diagnostics from that info, the scanner doesn't have ears or nose or experience and able to rationalise outside of its programming.

 

Edited by nta16

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My usual garage has a scanner which cost £25,000 I just hope Something comes up

Just now, Mikerp said:

My usual garage has a scanner which cost £25,000 I just hope Something comes up

That must be a vey old scanner or they do truck and/or other specialised vehicles/equipment - but they might also have somebody who really knows how to use the tool.  You and I could cut with a scalpel but I bet you'd not want either of us in a medical theatre - unless operating on those in English car Dealerships. 😁

 

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I have used the garage for years just changed to Skoda when i bought a better car. As I said earlier if they cannot diagnose any faults I will get them to change the spark plug and coil pack

2 minutes ago, Mikerp said:

I have used the garage for years just changed to Skoda when i bought a better car. As I said earlier if they cannot diagnose any faults I will get them to change the spark plug and coil pack

No need normally as with the scanner it should help to pinpoint, with interpretation, the fault, obviously intermittent faults are more difficult but if the fault triggered a code even in the past that can be looked at (unless erased).  And with this fabulous machinery hooked up you can ask an assistant, or perhaps do it yourself, to wiggle those wires, push this, pull that, heat that up, cool that down, mixing high and very low tech.

 

Be very interesting to find out the result, if it's something like loose battery terminal clamp or loose earth connection someone's for a dusting of their trouser bottoms (including you?).  😄  Good luck.

 

  • Author

Apparently with this car I have been told that when you switch the engine off it clears the codes, that's why Skoda couldn't diagnose any faults as there were no codes they told me to only bring it in when the engine management light is on. On Sunday when I have the car all day l will get the wife to wiggle the connector to coil 4 see if anything happens

Ohhhh, your model must be different to my wife's, codes were still on mine from being cleared on a lower level scanner and the ignition would have been switched off dozens if not hundreds of times, see what the other garage says about that.

 

Don't get your wife to do that as you may need to do it with the engine running, I'm sure she can see characters on a screen just as easily as you - but if you do get her to do it I'll rent her for work that needs doing on my car, my (very reluctant) glamorous assistant disappears if I blink.  😄

 

  • Author

She can take the odd shock, and she is glamorous

She can use metal grip pliers

 

Send her round I have a list of jobs going back years - and I make a very good cup of tea and promise to keep well out of the way.

 

Good luck, let us know how you get on.

 

Oh, can she work nights as it's a very long round-to-it list.

 

  • Author

By the way 7E9 Transmisson says no codes stored

Yeah it's just a section heading on your machine.

 

  • Author

Can anyone confirm that ignition coil D is cylinder 4 Skoda Fabia 1.2 2016

No - but you'd think so, try moving coil 4 to 1 and that will cover both ends and see if the fault moves, It also gives you a chance to inspect and clean the connector pins, plug sockets on the two you swap around.

 

Edited by nta16

  • Author

No point really, Because I would have to wait for the engine light to come on so I can scan it to see if the message changed. It doesn't shake the car every day  only happens every couple of weeks and the car is going into the garage on the 20th. 

You would think it would happen every time I start the car especially if there was a misfire

 

I'm sure I'd have already put about the car battery needing a good level of charge but I can't remember if we've been through the following but I forgot to mention it on a thread and Sod's Law it solved the problem.

 

It's only the old computer 'turn it odd 'n' on agin' (with extra discharge) but it's free, quite quick and easy to do, I only had to reset the time of day clock when I took the battery off overnight.

 

And it's a mechanic on a video so carries more weight than just me posting it.  I'd sooner he cleaned the battery post clamps too though.

 

A lot of people dismiss the simple stuff just because it's too simple but if it works who cares about the sexy complicated solutions.

 

 

Edited by nta16

  • Author

It had a new battery between the first time and 2nd time i had the problem alternator checked

The solution above isn't about the battery (although a new battery is still just a store so can still be depleted new or not) it's about the over-complicated (VW) computer programs that are very invasive and intertwined confusing themselves, no different to the other fabulous computers that surround us all.

 

Your car your decision, if it don't work what have you lost if it does happy days and no garage costs, and you might find other improvements if the computers have had their panties in a twist.

 

My neighbour and I saved another neighbour £174 (plus VAT?) Merc diagnostics (plugging a scanner in) for "transmission faults" just by doing a throttle reset and him using his scanner to clear stored error codes, all done from the comfort of inside the car and we certainly didn't strain ourselves or get our hands dirty.  The visit to the Merc Dealership "the only people who can recode the transmission new parts" was cancelled.

 

Edited by nta16
delete repeated word

  • Author

I could give it a try, Although I picked up a code with my reader that will have disappeared as all codes do when I turn off the engine and nothing appears again until the engine light comes on.

and I can rescan

 

Perhaps I'm wrong but my understanding is that the codes are stored, but your machine might not see them.

 

What new code did you get, and bear in mind sometimes the codes mean very little in themselves and/or can relate direct to other codes.

 

  • Author

Not only did my reader not show any stored codes but neither did the Skoda all singing and all dancing  diagnostic machine

The only code I have got was PP2309" IGNITION COIL D PRIMARY CONTROL CIRCUIT LOW" when I scanned with the engine light on. If I scanned again that code would not be there as when I turn off the engine it clears the codes apparently. Skoda said that to be able to diagnose a problem on my car the engine light needs to be on so they can connect up. If there is no engine light on then any codes would have been reset when I turn off the engine

 

I don't understand why when the engine is turned off it clears codes

  • Author

Maybe there are no historic codes that's why nothing shows up

Different to my understanding of it, you can get codes without any warning lights, whistles or bells, you can get codes when there's not really any problem other than the computer programs and they can be recorded.  By historical I only mean not as live data, like back in time watching a VCR recording rather than the live telly transmission.

 

For your code, a quick look on our American master's search machine (also answers your previous question) - 

 

P2309 – VOLKSWAGEN

Code : P2309
Marque : VOLKSWAGEN
Description : P2309 VOLKSWAGEN Ignition Coil 4 Primary Control Circuit Low
Causes possibles :
* Faulty Ignition Coil 4
* Ignition Coil 4 harness is open or shorted
* Ignition Coil 4 circuit poor electrical connection

 

https://www.cardiag.me/en/obd2-en/p2309-volkswagen/

 

BTW on a reset on older cars previous setting like throttle position are lost but I think ours at 2015/16 might hold the settings but I could be wrong, very often am, I didn't notice any change on my wife's car but perhaps there was.  If things are totally reset then perhaps initially some things might not improve immediately until the settings are re-established.  I drove my wife's Fabia yesterday, cold morning start, high idle and rough feel to it so I wait about 10-20 seconds for idle to drop and smooth out, in this time I don't load the engine with putting anything electrical on (the DRL are on by strict order from the boss).  The engine bay often has odd sounds I just ignore them now as I think it's just the computers interfering (probably fiddling the emissions and mpg figures).

 

Edited by nta16

  • Author

I assume when you say Volkswagen you mean Skoda. I also found these associated with the code

 

Replace/Repair These Parts To Fix Code P2309

  1. Ignition Coil - Are you facing some issues in starting your car engine? In that case there are chances that your ignition coil is damaged. Visit us to buy best quality ignition coil online.
  2. Engine Control Module - There can be some engine performance issues due to faulty engine control module. If the ECM fails or has any problems it can lead to performance issues with the vehicle like misfires, hesitation, loss of power, and sometimes even decreased fuel economy.
  3. Powertrain Control Module - PCM stands for powertrain control module. It is a car part, a control unit which is utilized on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit (TCU).
  4. Fuel Tank Pressure Sensor - The pressure sensor is important component that informs the PCM about the optimal fuel pressures and helps in managing the air to fuel ratios for maximum performance and fuel efficiency. Thus, buy new pressure sensor now!
  5. Fuel Injector - Faulty fuel injector, it will cause rough idles and difficulty in starting. Also, it will affect the fuel economy and engine performance. Fuel injector can also crack or break leading to leakages and should be replaced immediately.
  6. Electronic Control Unit - If your automobile's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a damaged electronic control unit. There are a lot of reasons why a car's check engine light will remain on. The most common reason is a defective ECU.
  7. Diagnostic Tools - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!

If  they don't find anything on their scanner I will get them to replace the coil pack and spark plug and check for loose wiring. Anything else they need to replace?

  • Author

Would that fault bring up the EPC light?

3 minutes ago, Mikerp said:

Would that fault bring up the EPC light?

Yes, probably and rough running.

 

Basically the problem potentially could be from the battery all the way through to the engine and anywhere in between but your scanner has pointed to number 4 coil as the end point of fault, not necessarily point of fault but it could be, it could be as simple as something isn't push home properly or the coil is faulty which is why I suggested swapping it around.  The thing is if the problem is intermittent then you have to wait for it or try to provoke it.

 

The engine is VW the cheating computer programs are VW, there's lots of VW on the Fabia, look at any parts and see if it has VW or Skoda on it.

 

I don't understand, why are you paying a garage for their expertise and then not trusting them to know what they're doing, they'll ignore what you say anyway which is partly correct as they need to establish the actual fault and remedy themselves.  Unless there are codes or signs of misfire I don't see why a plug would need replacing.

 

A proper scanner with someone that knows how to do diagnostics properly should make this an easy job - or I'm misunderstanding these machines which is possible.  The machine you have is very entry level the full machines do so much it should be a lot easier with them, my neighbour's scanner showed 638 lines for the engine on my wife's Fabia and that's not a pro machine.

 

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