Octavia VRS 2002 engine management light

paul bateman · 12-07-2006, 08:13

Hi,
This has been my first real problem with the car apart from 4 x ignition coils. I have owned the car from new and it is just approaching 29k miles. The engine management light has been on for a day, the book says emissions and car performance may be reduced. I have gave it a blast and performance is still top notch, also fuel consuption seems better ?????

any idea's

Paul

Quinten · 12-07-2006, 08:16

I have this every once in a while. In my case it is one of the temperature sensors who registers a value that is outside its range, which just triggers the light to come on. After a week of driving (i.e. re-starting engine), the light will go out. However, it could be a lot of things, so I'd advice you to find someone with a VAG COM and get the fault code read.

paul bateman · 12-07-2006, 08:21

I live in the Portsmouth area, has anyone in this area got one?

SRS · 12-07-2006, 23:12

Sorry to hijack your thread but I have a related problem that maybe someone on here could help with.

Three weeks ago my engine managment light came on, the previous evening I'd driven quite fast (only for a few moments at very high speed on an dual carriageway just for a quick blast ...ahem sorry Mr Plod.. ) anyway the car was due for a service so I booked it in and got the light investigated, the skoda dealer said it was needing some adjustments to the cams or camshaft, which they carried out however they couldn't get the light to go out (!), I'd informed them previously that it had an APR remap, but that the light had never been on since I'd owned the car. They sent me off with the car which I've just used for a holiday to France -2200miles later

and the light is still on, my problem is should I protest more to get an answer on why its staying on as a) its annoying and b) if another fault develops I ain't going to know about it until its perhaps too late.

Any advice - have people with remap had similar problems??

thanks in advance - sorry Paul hope you get an answer to!

paul bateman · 13-07-2006, 13:28

I purchased a serial lead from Gendan, downloaded VAG-Com from ross-tech.com and came up with a fault code 17704 engine mapped temperature sensor. Anyone know this sensors location? and is this a comman defect. I have cleared the fault at the moment using the software and laptop, but need to be ready in case it returns.

Quinten · 13-07-2006, 15:05

That is the sensor I am referring to.

yellotaxi · 13-07-2006, 16:02

Well i had the same problem,

the light came on and would not reset,
Nobody could sort it not Even Local vw Tuner in kirkaldy and the dealer x2
plus local specialist,

I was told i would need a new ECU £700 new
as you can expect i fell to the floor in horror,

Some kind people on this fine forum sugested REVO

I e-mailed Them with details of fault code ect,

The result was that when i had a 7 day trial APR put on the car 2 years previously
and never got it re installed permenantly, and if APR dont get it removed in time
after 2000 ignition switches or so it screws up and tells the ECU theres somthing
wrong.
The garage who will remain nameless who applied APR kept quite and said an ecu was needed.

REVO sorted my ecu, got it mapped at the same time so killed two bird with one stone

Your problem might not be like mine so check fault codes, mine was (check sum code error)

good luck

paul bateman · 14-07-2006, 08:09

Quinten, is the sensor that you referred to:
cooling system?
air temp?
oil temp?
Which one do I buy or is there only one.

Quinten · 14-07-2006, 09:09

Air temp iirc. But why buy a new one? I just said above that it is due to it reading a value outside (to what it considers) its safe boundary. That doesn't mean that it is broken, it just means that sometimes (and this is very infrequent, like once every 6 months) it throws the engine management light.

Just my 2 penneth...

paul bateman · 14-07-2006, 10:32

Quinten, as you probably guessed I am not greatly familiar with modern car systems. I am great with ships and submarines as I teach the RN Ships control systems and sensors (for which there is a temp sensor for everything). I am very greatful for you're excellent knowledge and experience and as you seem quite clued up on the VRS sensors, is there anywhere I can get a list of sensors and locations. What is iirc air temp?

regards
paul

Quinten · 14-07-2006, 12:14

I'm as clued up as my friendly Skoda techie is... I do not know what sensor is where, nor do I know for certain that the sensor that activates my light is the air temp sensor. I just seem to remember it like that.

My problem goes away after a week or so... if yours doesn't then it may be something completely different.

SRS · 19-07-2006, 23:41

Quote:

Originally Posted by yellotaxi

Well i had the same problem,

the light came on and would not reset,
Nobody could sort it not Even Local vw Tuner in kirkaldy and the dealer x2
plus local specialist,

I was told i would need a new ECU £700 new
as you can expect i fell to the floor in horror,

Some kind people on this fine forum sugested REVO

I e-mailed Them with details of fault code ect,

The result was that when i had a 7 day trial APR put on the car 2 years previously
and never got it re installed permenantly, and if APR dont get it removed in time
after 2000 ignition switches or so it screws up and tells the ECU theres somthing
wrong.
The garage who will remain nameless who applied APR kept quite and said an ecu was needed.

REVO sorted my ecu, got it mapped at the same time so killed two bird with one stone

Your problem might not be like mine so check fault codes, mine was (check sum code error)

good luck

Come on Yello, name names or email/pm me as mine has an APR remap done by Star Performance I believe, I need to know who to contact/ blame

fordfan · 20-07-2006, 07:45

17704 is referring to the engine cooling system temperature. First cause of action would be to replace the sensor which is situated in the coolant piping close to the passenger side of the cylinder head. The original is black and the revised part is green.

The inlet air temperature sensor is part of mass air meter, which is in the ducting just after the air filter housing.

daewoo321 · 20-07-2006, 08:22

hey

this 17704 error had it @ the beginning of the year .....
the car would start with the default setting for the outside temp ... and in the winter the engine would stop after a couple of sec after start. i had to acelerate it a bit just to get it warm after that it would run fine

i did change the temp sensor under warranty but after a day or two it came back ....

the car was remapped and the remapping company solved it ....
it was a software error .

if u want i will give u their email ... they speak english

good luck

***DGW*** · 20-07-2006, 10:26

The dual temperature sender is on the right hand side of the engine and is circled in red in the photo. The arrow indicates the release clip for it. This is the unmodified (black) sender which can cause problems by sending incorrect information to the ECU. The modified sender (PN: 059 919 501A - ££22.37 + vat) can be identified by a green band around the base.

paul bateman · 21-07-2006, 07:47

DGW-Dennis,
Top Banana! this is just what I was looking for
many thanks
Paul.

sixman9 · 08-08-2006, 17:12

Just for further knowledge, and to aid the site search

, the coolant sensor part pictured earlier in the thread is also known as both the G2 and G62 sensor(s).

Here is some further info on this:-

http://www.audiworld.com/tech/eng66.shtml

http://autorepair.about.com/library/faqs/bl012h.htm -> pics of g2 / g62

Hope this helps somebody

Rich

12-07-2006, 08:13	#1
paul bateman Briskodian Join Date: Apr 2006 Location: Gosport Hampshire Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts	Octavia VRS 2002 engine management light Hi, This has been my first real problem with the car apart from 4 x ignition coils. I have owned the car from new and it is just approaching 29k miles. The engine management light has been on for a day, the book says emissions and car performance may be reduced. I have gave it a blast and performance is still top notch, also fuel consuption seems better ????? any idea's Paul

12-07-2006, 08:16	#2
Quinten Crossdresser Join Date: Apr 2003 Location: fast lane Posts: 10,030 Thanks: 24 Thanked 41 Times in 38 Posts	Re: Octavia VRS 2002 engine management light I have this every once in a while. In my case it is one of the temperature sensors who registers a value that is outside its range, which just triggers the light to come on. After a week of driving (i.e. re-starting engine), the light will go out. However, it could be a lot of things, so I'd advice you to find someone with a VAG COM and get the fault code read. __________________ Awooga!!!

12-07-2006, 08:21	#3
paul bateman Briskodian Join Date: Apr 2006 Location: Gosport Hampshire Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light I live in the Portsmouth area, has anyone in this area got one?

12-07-2006, 23:12	#4
SRS Briskodian Join Date: Aug 2005 Location: W. Midlands Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light Sorry to hijack your thread but I have a related problem that maybe someone on here could help with. Three weeks ago my engine managment light came on, the previous evening I'd driven quite fast (only for a few moments at very high speed on an dual carriageway just for a quick blast ...ahem sorry Mr Plod.. ) anyway the car was due for a service so I booked it in and got the light investigated, the skoda dealer said it was needing some adjustments to the cams or camshaft, which they carried out however they couldn't get the light to go out (!), I'd informed them previously that it had an APR remap, but that the light had never been on since I'd owned the car. They sent me off with the car which I've just used for a holiday to France -2200miles later and the light is still on, my problem is should I protest more to get an answer on why its staying on as a) its annoying and b) if another fault develops I ain't going to know about it until its perhaps too late. Any advice - have people with remap had similar problems?? thanks in advance - sorry Paul hope you get an answer to! __________________ SOLD::Black Octavia vRS with added Bilstein, APR, K&N, Black Diamond and Milltek :0)

13-07-2006, 13:28	#5
paul bateman Briskodian Join Date: Apr 2006 Location: Gosport Hampshire Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light I purchased a serial lead from Gendan, downloaded VAG-Com from ross-tech.com and came up with a fault code 17704 engine mapped temperature sensor. Anyone know this sensors location? and is this a comman defect. I have cleared the fault at the moment using the software and laptop, but need to be ready in case it returns.

13-07-2006, 15:05	#6
Quinten Crossdresser Join Date: Apr 2003 Location: fast lane Posts: 10,030 Thanks: 24 Thanked 41 Times in 38 Posts	Re: Octavia VRS 2002 engine management light That is the sensor I am referring to. __________________ Awooga!!!

13-07-2006, 16:02	#7
yellotaxi Briskodian Join Date: May 2004 Location: fife Posts: 455 Thanks: 0 Thanked 6 Times in 6 Posts	Re: Octavia VRS 2002 engine management light Well i had the same problem, the light came on and would not reset, Nobody could sort it not Even Local vw Tuner in kirkaldy and the dealer x2 plus local specialist, I was told i would need a new ECU £700 new as you can expect i fell to the floor in horror, Some kind people on this fine forum sugested REVO I e-mailed Them with details of fault code ect, The result was that when i had a 7 day trial APR put on the car 2 years previously and never got it re installed permenantly, and if APR dont get it removed in time after 2000 ignition switches or so it screws up and tells the ECU theres somthing wrong. The garage who will remain nameless who applied APR kept quite and said an ecu was needed. REVO sorted my ecu, got it mapped at the same time so killed two bird with one stone Your problem might not be like mine so check fault codes, mine was (check sum code error) good luck

14-07-2006, 08:09	#8
paul bateman Briskodian Join Date: Apr 2006 Location: Gosport Hampshire Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light Quinten, is the sensor that you referred to: cooling system? air temp? oil temp? Which one do I buy or is there only one.

14-07-2006, 09:09	#9
Quinten Crossdresser Join Date: Apr 2003 Location: fast lane Posts: 10,030 Thanks: 24 Thanked 41 Times in 38 Posts	Re: Octavia VRS 2002 engine management light Air temp iirc. But why buy a new one? I just said above that it is due to it reading a value outside (to what it considers) its safe boundary. That doesn't mean that it is broken, it just means that sometimes (and this is very infrequent, like once every 6 months) it throws the engine management light. Just my 2 penneth... __________________ Awooga!!!

14-07-2006, 10:32	#10
paul bateman Briskodian Join Date: Apr 2006 Location: Gosport Hampshire Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light Quinten, as you probably guessed I am not greatly familiar with modern car systems. I am great with ships and submarines as I teach the RN Ships control systems and sensors (for which there is a temp sensor for everything). I am very greatful for you're excellent knowledge and experience and as you seem quite clued up on the VRS sensors, is there anywhere I can get a list of sensors and locations. What is iirc air temp? regards paul

14-07-2006, 12:14	#11
Quinten Crossdresser Join Date: Apr 2003 Location: fast lane Posts: 10,030 Thanks: 24 Thanked 41 Times in 38 Posts	Re: Octavia VRS 2002 engine management light I'm as clued up as my friendly Skoda techie is... I do not know what sensor is where, nor do I know for certain that the sensor that activates my light is the air temp sensor. I just seem to remember it like that. My problem goes away after a week or so... if yours doesn't then it may be something completely different. __________________ Awooga!!!

20-07-2006, 07:45	#13
fordfan ECUless Join Date: Mar 2005 Posts: 2,042 Thanks: 30 Thanked 241 Times in 210 Posts	Re: Octavia VRS 2002 engine management light 17704 is referring to the engine cooling system temperature. First cause of action would be to replace the sensor which is situated in the coolant piping close to the passenger side of the cylinder head. The original is black and the revised part is green. The inlet air temperature sensor is part of mass air meter, which is in the ducting just after the air filter housing.

20-07-2006, 08:22	#14
daewoo321 Briskodian Join Date: Jun 2003 Location: Romania Posts: 22 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light hey this 17704 error had it @ the beginning of the year ..... the car would start with the default setting for the outside temp ... and in the winter the engine would stop after a couple of sec after start. i had to acelerate it a bit just to get it warm after that it would run fine i did change the temp sensor under warranty but after a day or two it came back .... the car was remapped and the remapping company solved it .... it was a software error . if u want i will give u their email ... they speak english good luck

20-07-2006, 10:26	#15
*DGW* BRISKODA Staff Join Date: Oct 2002 Location: Cambridgeshire Posts: 17,259 Thanks: 51 Thanked 197 Times in 149 Posts	Re: Octavia VRS 2002 engine management light The dual temperature sender is on the right hand side of the engine and is circled in red in the photo. The arrow indicates the release clip for it. This is the unmodified (black) sender which can cause problems by sending incorrect information to the ECU. The modified sender (PN: 059 919 501A - ££22.37 + vat) can be identified by a green band around the base. __________________ Denis 2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg 2007 Fabia vRS - CC, ESP and full leather trim by Seat Surgeons ...48.57 mpg...

21-07-2006, 07:47	#16
paul bateman Briskodian Join Date: Apr 2006 Location: Gosport Hampshire Posts: 10 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Octavia VRS 2002 engine management light DGW-Dennis, Top Banana! this is just what I was looking for many thanks Paul.

08-08-2006, 17:12	#17
sixman9 Briskodian Join Date: Sep 2003 Location: Leicester Posts: 392 Thanks: 0 Thanked 1 Time in 1 Post	Re: Octavia VRS 2002 engine management light Just for further knowledge, and to aid the site search , the coolant sensor part pictured earlier in the thread is also known as both the G2 and G62 sensor(s). Here is some further info on this:- http://www.audiworld.com/tech/eng66.shtml http://autorepair.about.com/library/faqs/bl012h.htm -> pics of g2 / g62 Hope this helps somebody Rich __________________ A wise man always know when to listen [so be wise and let me speak!!]. Last edited by sixman9; 08-08-2006 at 17:46.

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