Jump to content


BRISKODA National Meet, it's free, find out more.  |  Blyton Park Track day, from £30.
Photo
- - - - -

Help! My EPC (Emissions) or CEL (Check Engine Lamp) is on.


  • Please log in to reply
33 replies to this topic

#1 cjb

cjb

    Briskodian

  • FREEDOM
  • PipPipPipPipPip
  • 4,418 posts
  • Car:Leon TDI DSG or Lupo 16v Sport

Posted 15 June 2009 - 21:13

Help! My EPC (Emissions) or CEL (Check Engine Lamp) is on.

There's a very simple thing to check first: your brakelights. If they don't work, check the brake pedal switch. It's a common fault. Also have a look for anything obvious like a loose or failed HT lead, or an audible air leak if that's appropriate for your car.

Other than that, you really need to get your car scanned by someone with VAG-COM (VCDS), a VAS computer (the one dealers have), or a OBD-II scanner.

Of these, the VAS or VCDS/VAG-COM is your best bet as it can read and decode more faults from the car.

You have several ways of getting the car scanned:

* You can pay a Skoda (or other VAG) dealer. Typically this will cost at least £40.

* You can pay an independent garage. This will be a bit cheaper, but unless the garage specialises in VAG cars, it will probably only have a generic scanner.

* You can ask here in the VAG-COM and diagnostics forum. Look at the member map. If there's someone near you, send them a PM, and negotiate a price- which may just be a pint or two.

* You could obtain VAG-COM/VCDS or a code reader yourself. This can cost as little as £20ish for an ebay cable and a limited downloadable version of VAG-COM, but a fully licenced version (with full capability and support from Ross-Tech) costs more.

For later cars (Octavia II and Superb II), you need a CAN-capable scanner or a version of VAG-COM and appropriate genuine Ross-Tech cable that supports CAN-only cars.

A scan really is the only way to try to diagnose a CEL/EPC light, and often odd running problems as well. If you post the logs from the scanner on this site, someone will have a chance of solving your problem. Otherwise, it's just wild guesswork and you could be checking and changing things for ever.

Edited by cjb, 16 June 2009 - 16:03.


#2 chris_b

chris_b

    Briskodian

  • Members
  • Pip
  • 1 posts

Posted 02 December 2009 - 18:45

Whilst driving to work this morning stuck in traffic, the EPC light came on. I tried restarting the engine to see if it was a glich, but it remained on. The car didn't appear to be driving any differently than normal. Left the car for the day, expecting the light to be on and needing to phone the garage when I got home, but to my surprise it didn't come on at all on my journey back home. Was it just a glich?

#3 TheOne

TheOne

    Briskodian

  • Members
  • PipPipPip
  • 142 posts
  • Location:Nottingham
  • Car:Ford Mondeo 2.0 TDCI Titanium X

Posted 06 December 2009 - 20:44

Gutted mine has come on Today! The only thing I noticed before it did was that my temp gauge did not move up steadily, but just shot straight up to 90. After that I saw the light come on and thought 'Oh dear' (you know what /i really mean!). Reffered to the manual, but I had no 'EMISSIONS WORKSHOP' message on my display! Lets hope its just a faulty sensor, are they cheap? GULP!!!

#4 nigel_w

nigel_w

    Newbie

  • Members
  • Pip
  • 1 posts
  • Car:Skoda octavia VRS

Posted 11 January 2010 - 09:08

chech your engine coolant temp sensor if u did plug in VCDS or a 1552 machine the fault code would be G250

#5 solesister

solesister

    Briskodian

  • Members
  • Pip
  • 6 posts

Posted 18 April 2010 - 21:08

chech your engine coolant temp sensor if u did plug in VCDS or a 1552 machine the fault code would be G250



I had the same problem and continued for about two months with the EPC light coming on intermittantly. After a while i took it to the Skoda garage where they replaced the engine coolant temp sensor.

The car is still under warranty at £12K miles and not two years yet !!

Back windscreen wipe also failed and was fixed.

I never get a light to come on and tell me i have no washer fluid left, only know when none comes out..... :-(

#6 timtenor

timtenor

    Newbie

  • Members
  • Pip
  • 1 posts
  • Location:Germany
  • Car:Skoda Fabia 1.4

Posted 02 May 2010 - 19:26

EPC light comes on after driving for a couple of minutes. Car (Fabia 1.4) always starts first time.
When the light comes on it takes all the guts out of the engine and you crawl along. Depressing the accelerator makes little or no difference.
Re starting sometimes makes the light go out and you continue as normal for another couple of minutes.
Sometimes the light will just go out on its own and the engine returns to full power.

Here's the crunch - the car has been to a Skoda dealer for a diagnostic check and has been given a clear bill of health.
I'm reluctant to give the dealer a blank check to have the problem fixed.

Any ideas? - I'm thinking of starting cheep (temp sensor) and progressing from there.
Car is a 2002 Skodia Fabia 1.4 petrol.

Thanks
Timtenor@web.de

#7 toosmiles

toosmiles

    Briskodian

  • Members
  • PipPipPip
  • 277 posts
  • Location:N.Wales
  • Car:Cupra K1 stage 2+

Posted 21 October 2010 - 17:35

hi guys
drove about 50+ miles today and noticed the CEL on
the only thing ive done to the car was to put a new panel filter in it on wednesday
the car still drives normally with the power etc but when coming to a stand still/crawl ive noticed the front passenger brakes are squeaking/grinding
anyone got any advice before a take it skoda for a large bill to tell me whats wrong?
cheers

#8 toosmiles

toosmiles

    Briskodian

  • Members
  • PipPipPip
  • 277 posts
  • Location:N.Wales
  • Car:Cupra K1 stage 2+

Posted 22 October 2010 - 09:13

can anyone help me please?

#9 RO0

RO0

    Advanced Member

  • Members
  • PipPipPipPip
  • 592 posts

Posted 02 December 2010 - 19:27

Mine comes on when I turn the key to start the engine, all the other lights go out and this stays on, but once the engine fires it disappears. Normal?

#10 octavrskoda

octavrskoda

    Finding my Feet

  • Members
  • PipPip
  • 62 posts
  • Location:Gloucestershire
  • Car:2006 Octavia 1.9 TDI 105 BXE; Past: Octavia vRS FSI

Posted 11 December 2010 - 22:59

My 2.0 TFSI was doing this when i got it (EPC light & loss of power) - turned out to be the throttle body itself. New one in and not had a problem since (3 months)

#11 Andrew Ball

Andrew Ball

    Newbie

  • Members
  • Pip
  • 6 posts

Posted 12 January 2011 - 15:35

chech your engine coolant temp sensor if u did plug in VCDS or a 1552 machine the fault code would be G250


Also could be a alternator, I just had the same type of issue and it the alterator, and is there a tiny battery drain? What it was on mine

#12 bettysan

bettysan

    Briskodian

  • Members
  • Pip
  • 11 posts
  • Car:Fabia 1.4 16v Ambiente

Posted 13 January 2011 - 22:37

My EPC light would very occasionally come on during slow manoevres like reversing and the engine would often stall at these times. Light would clear if I turned ignition off and then on.

Then recently the EPC light came on all the time. Was getting poor tickover, hunting and stalling. Car felt down on power at higher speeds.

Fixed it by replacing the MAP sensor. Feels like a different car now. The old MAP sensor was dirty. Might have been able to clean it, but since I'd already bought a new one I fitted that.

Edit -
I should add that I did a scan with my cheapo code reader, £12 off eBay. It said MAP sensor was at fault. Was also able to remove the fault code (and warning light) afterwards with this.
All is still fine a month after the fix. Car is now so much better to drive.

(2004 Fabia 1.4 16v, petrol, BBZ engine).

Edited by bettysan, 10 February 2011 - 17:02.


#13 vulcan1966

vulcan1966

    Newbie

  • Members
  • Pip
  • 3 posts
  • Location:uk
  • Car:fabia 1.4 mpi

Posted 09 February 2011 - 21:43

have a fabia 1.4 8v and EPC light on dash. car was scanned and had a fault in coolant circuit range/performance. changed temp sender with no effect. have now changed thermostat as well as also faulty. EPC and DTC fault codes erased but after 10 mins EPC light back on but scan now shows no fault codes. has anyone any suggestions

#14 Red_VRS

Red_VRS

    Newbie

  • Members
  • Pip
  • 6 posts
  • Location:Dorset
  • Car:Skoda VRS

Posted 10 February 2011 - 13:28

Im have a simular problem with my VRS, my light comes on at 66mph and go off sometimes when i fill it with diesel :S. Im thinking a loose connection as I drove down a reasonable bumpy road this morning ad it went off. Any ideas what might be loose?

Cheers guys

#15 MarkF01

MarkF01

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 16 February 2011 - 20:29

EPC light comes on after driving for a couple of minutes. Car (Fabia 1.4) always starts first time.
When the light comes on it takes all the guts out of the engine and you crawl along. Depressing the accelerator makes little or no difference.
Re starting sometimes makes the light go out and you continue as normal for another couple of minutes.
Sometimes the light will just go out on its own and the engine returns to full power.

Here's the crunch - the car has been to a Skoda dealer for a diagnostic check and has been given a clear bill of health.
I'm reluctant to give the dealer a blank check to have the problem fixed.

Any ideas? - I'm thinking of starting cheep (temp sensor) and progressing from there.
Car is a 2002 Skodia Fabia 1.4 petrol.

Thanks
Timtenor@web.de



#16 penlost

penlost

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 11 March 2011 - 15:52

The check engine light is doing my head and costing me lots of money! My Fabia 1.2 was a lovely car but in the past two months the engine light keeps coming on and the engine then runs on reduced power.

1. The garage changed the ignition coil and it went away

2. Two days later the light was back on but car running ok. Garage advised the code was for low coolant level but level was fine. Code reset and light went off.

3. Today, after another two days light went on again and car on reduced power :(

Can anyone help suggest something I can do?

#17 MoggyTech

MoggyTech

    Briskodian

  • Members
  • PipPipPipPipPipPip
  • 5,868 posts
  • Location:West Lothian
  • Car:Fabia VRS LE / Morris 1000 Traveler

Posted 11 March 2011 - 16:14

The check engine light is doing my head and costing me lots of money! My Fabia 1.2 was a lovely car but in the past two months the engine light keeps coming on and the engine then runs on reduced power.

1. The garage changed the ignition coil and it went away

2. Two days later the light was back on but car running ok. Garage advised the code was for low coolant level but level was fine. Code reset and light went off.

3. Today, after another two days light went on again and car on reduced power :(

Can anyone help suggest something I can do?


What is the current fault code?

#18 penlost

penlost

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 14 March 2011 - 10:40

What is the current fault code?


Code is for coolant temp sensor and another ignition coil has gone. I was told this is normal, if one goes then the others tend to fail. If I get the parts does anybody know if these are easy to change? I have a pretty basic tool kit but up for trying one / both of the jobs if it will save me the £300 quoted to do the jobs!

#19 penlost

penlost

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 14 March 2011 - 16:55

Code is for coolant temp sensor and another ignition coil has gone. I was told this is normal, if one goes then the others tend to fail. If I get the parts does anybody know if these are easy to change? I have a pretty basic tool kit but up for trying one / both of the jobs if it will save me the £300 quoted to do the jobs!



As an update to this, I went for it today!

Changed the ignition coil, car now runs fine B)

Changed the coolant temp sensor (after a nice warm gush of coolant, forget to let it cool down first!). This was the code that came up when the garage scanned it last.

Now the car runs fine, temp gauge is dead in the middle (It was anyway). So I am hoping I have cracked it! But engine light remains on - do I need to plug in a VAG COM to get it extinguished or is there another way? I am happy to purchase one off ebay if required, especially as I have so far saved my self a couple of hundred pounds in garage fees

#20 CarOfRassilon

CarOfRassilon

    Newbie

  • Members
  • Pip
  • 11 posts
  • Car:Fabia Elegance

Posted 06 May 2011 - 16:51

Hi,

My light has just come on during my drive home from work, and resulted in a fairly large feeling power loss with the engine feeling smooth, but as if it didn't want to go anywhere. Its the second time its done this in a week. Turning it off and on again seems to cure the power loss, but the light stays on. Turned itself off after a day or two last time. Am I anywhere near in guessing its a sensor that it simply tripping when it shouldn't be, before clearing itself?

2000 plate 1.4 16v by the way. Thanks.

#21 Southy

Southy

    Uber Member

  • Members
  • PipPipPipPipPip
  • 1,197 posts

Posted 15 May 2011 - 18:50

Evening people, I picked up my new car on Thursday evening and has given me 200+ miles trouble free driving until today. The CEL came on whilst going up the M6, I carried on at a reduced speed and parked up where I was going. We then travelled around the country lanes in the areas at a steady speed and the light went out but the minute I jumped back onto the motorway to come home the light returned back on. The car suffered no power loss during the time that the light was on.

The car is an 06 plate Fabia vRS covered only 34k from new, any ideas as to what the problem could be or how I could go about sorting it?I tried the brake lights thing and they are working fine.

#22 Static

Static

    Briskodian

  • Members
  • PipPipPipPip
  • 505 posts
  • Car:Fabia VRS

Posted 30 June 2011 - 19:20

My light is still 200 miles on after putting back the egr pipe.

Have connected my STS unit and it says no fault found?

#23 dhole1412

dhole1412

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 23 August 2011 - 23:25

Hi,

My light has just come on during my drive home from work, and resulted in a fairly large feeling power loss with the engine feeling smooth, but as if it didn't want to go anywhere. Its the second time its done this in a week. Turning it off and on again seems to cure the power loss, but the light stays on. Turned itself off after a day or two last time. Am I anywhere near in guessing its a sensor that it simply tripping when it shouldn't be, before clearing itself?

2000 plate 1.4 16v by the way. Thanks.


I have that same problem, I have it scanned (not sure how well tho) and the Crank shaft sensor showed low voltage.. I had it replaced, but the problem did not go away. As time has gone on, the problem has got worse, and the engine cuts out and the EPC light comes on from time to time too, This is becoming more frequent as well!

I'd love to know if anyone has actually had a dealer sort this problem out, as all i have heard is that dealers have failed to sort the problem!

#24 andyscooter

andyscooter

    Newbie

  • Members
  • Pip
  • 2 posts
  • Location:midlands
  • Car:fabia 1.2 silverline(wifes)

Posted 09 September 2011 - 17:15

just had epc light come on and the abs light on my wifes 1.2 fabia silverline

also the brakelights are not working any ideas anybody

#25 kwakbiker

kwakbiker

    Briskodian

  • Members
  • PipPip
  • 73 posts

Posted 12 September 2011 - 10:10

just had epc light come on and the abs light on my wifes 1.2 fabia silverline

also the brakelights are not working any ideas anybody

Reading the first post on this thread, the lack of brake lights may well be the issue for the light on, check bulbs and then switch. Just got myself an 02 comfort estate and the CEL came on within 20 miles, garage good as gold plugged in the scanner and showed EGR valve so thats being sorted as we speak

#26 lostsoul82

lostsoul82

    Briskodian

  • Members
  • PipPip
  • 69 posts

Posted 24 September 2011 - 17:19

Hi all,

My Wifes 1.4 auto Fabia has hda a rash of faults just lately (last 6 months or so). First it was Lambda sensor no2 that was slow to respond, then it stopped reading altogether, replaced it, then the code was replaced with one saying the manifold pressure was 'implausible'. Replaced that sensor today, and now its telling me that the torque figure from the engine is 'out of range'!!! All the time the EPC and CEL have been on pretty much constantly!
Is there something more fundamental, like a screwed ECU?!
The only time I've noticed any running problems was with the last fault for the torque, where the gearbox couldnt make its mind up which gear to be in when crawling forward in traffic.
Its on a Y/2001 plate so its gettin on a bit now, and I dont really want(nor can I afford!)to keep throwing money at it!

Any ideas?

Edited by lostsoul82, 24 September 2011 - 17:24.


#27 sepulchrave

sepulchrave

    Yet another idiot who can drive a car...

  • Members
  • PipPipPipPipPip
  • 1,558 posts

Posted 24 September 2011 - 23:39

Replace the EGR valve and the temperature sensor.

#28 lostsoul82

lostsoul82

    Briskodian

  • Members
  • PipPip
  • 69 posts

Posted 06 October 2011 - 07:17

For anyone that may have a manifold pressure code coming up and cant get rid, do what I did last night, get a mate to spray a can of carb cleaner down the throttle body while you hold it just off tickover, all the fault lights have cleared and its running like a champ!
The friend that helped me out used to work at a garage in Stockport, and as soon as I took the engine cover off he commented that he used to see lots of Polos with this engine with warning lights coming up, and they used to just spray carb cleaner into the engine, and it usually cleared it!
Lucky for me (and my wallet!) it worked this time too!
So far done about 40 miles and they havent come back on yet(they used to come on first time you slowed down for lights etc).
Worth a try.....

#29 lostsoul82

lostsoul82

    Briskodian

  • Members
  • PipPip
  • 69 posts

Posted 07 October 2011 - 19:58

Hi all,
An update on the fault light situation.....
The other halfs Fabia went in for MOT today, and failed miserably on CO emissions, even with no fault lights. An hour after this, the lights reappeared! Gettin more than a little pi55ed off now, specially as the codes are now telling me the lambda sensor I replaced three weeks ago is failing again, and the MAP sensor warning is back!
So, what to do first? Change the MAP and see if this clears the lambda code(after a clearing out run), or change that again too so I'm starting from fresh? Or could something else be throwing them both off values? (I cleaned the throttle body when I did the oil change, and thats when the lights went out on their own!)
Any ideas greatfully received!

#30 Camble

Camble

    Digital Designer

  • Members
  • PipPip
  • 56 posts

Posted 18 December 2011 - 09:16

I left my VRS at work overnight, collected it last night and noticed the "Control system for exhaust" light was on.

I've driven the car a few times over the last 24 hours and it seems fine, although the light is still on.

I've got an STS which I plugged in and looked for faults, however none were found.

Any ideas?




0 User(s) reading this topic

0 members, 0 guests, 0 anonymous users