Diagnotic light for Error in Mapped Cooling System

Crize

Full Member
Jul 7, 2005
79
0
For the record only (not solving our problem):

Got the error erased last friday.
Before cold take-off (4-5hrs parked), warm-up the car 3-5 mins... NO engine stop and NO light... yet. :)

Then again, this is not THE solution. :(



Paul-man, u still upset for the commas...? :D C'mon!
 

Crize

Full Member
Jul 7, 2005
79
0
NOPE! Light is back on this morning at the first start. :(

This could also be gas-related, as I filled with another petrol brand.
Again, otherwise car is running fine...
 

Crize

Full Member
Jul 7, 2005
79
0
HI!

Anything new..?

Simon, does your car stop in cold mornings, at first pull-out...?



Cheers.
 

Bottax

Guest
Hi, this is my error (Mapped Leon FR 20VT Year 2004).
Someone who has resolved it?
Thanks.
 

Crize

Full Member
Jul 7, 2005
79
0
Not yet, apparently!!

Did you try changing the “classics”, temp sensor or thermostat?
 

Bottax

Guest
Crize said:
Not yet, apparently!!

Did you try changing the “classics”, temp sensor or thermostat?

Yes, but the only way I have find to fix this problem is to change the entire ECU.
And i know that all FR 20 VT have this problem after ECU tuning.
 

Crize

Full Member
Jul 7, 2005
79
0
Not all, as far as I know...

Do u know someone who got rid of the problem by changing the ECU?
...And remapped it again afterwards, maybe.. :)

Or did your dealer said it?
 

Bottax

Guest
Yes, I have changed (the dealer change...) the ECU and fix my problem... but the HW number and SW number of my old ECU is the same of new ECU... so I have not remapped it, beacuse I want to know where is the problem first (the dealer will not change it anymore without take a lot of money :cry: ).
Here in Italy i know same people that have remapped the FR 1.8 20VT (2004) from different tuners, but all get the errore 17704 P1296.
It seems that older versions of 20 VT (in Italy called TOP SPORT ) are not affected from this problem beacuse a lot of people have done an ECU tuning with great results.
 
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Crize

Full Member
Jul 7, 2005
79
0
Dam! Personally, I was afraid of this..! :(

We were also thinking that the fault is related to this series of HW & SW. Same series pop same error on Octavia RS.

Fact is, I think there are remapped FRs that work just fine. I asked about this problem at Upsolute in Austria and at REVO in UK. They did not encounter this problem.

What tuner remapped ur car?
Did you or some of ur friends try and upload another version of software..? Or the factory values?
 

Bottax

Guest
Many thanks for your help.
I have remapped using software made by Dim Sport. I don't know what software used my friends.
I have also tried to upload the factory values but the error cames back again.
 

Crize

Full Member
Jul 7, 2005
79
0
Fact: My car was also remapped by DimSport... :) Error present. :(
Could THIS be the problem?

Otherwise, I am very pleased with the result.
Please ask your friends who remapped their cars... Maybe we pull something out.

What other parts did you replaced.. related to this?
 

Crize

Full Member
Jul 7, 2005
79
0
Bottax: If you want, mail me your contact/phone number.
We can exchange more details.

crizze gmail com
 
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Crize

Full Member
Jul 7, 2005
79
0
Problem solved!

Turned out to be an ECU Software issue, after remap, only for this Sw/Hw
(as Bottax showed, this error is NOT listed for the 180HP models).

Tuner finally fixed the inconsistency.
 

vern

I Miss Her Below!
Jun 17, 2003
2,020
0
N.Yorks.
seatcupra.net
Crize said:
Problem solved!

Turned out to be an ECU Software issue, after remap, only for this Sw/Hw
(as Bottax showed, this error is NOT listed for the 180HP models).

Tuner finally fixed the inconsistency.
This is a dimsport issue!!!! yes? it's in the standard and tuned maps, so going back to stock error still occurs:(
 

m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
33
Clanfield, UK
sounds like they loaded the wrong software version when they remapped it.

see thread in JBS section re: jabba - different problems, similar reason.
 

Crize

Full Member
Jul 7, 2005
79
0
No wrong Sw version... wouldn't work, I guess.

New content has different valid checksum!

For the checksum to be met, some bits are written in presumably empty or unread "areas" of the eprom. My gues is tuner was accidentally writing in an area that, at this version, was not empty.. or unread.
DimSport also updated comunication .dll of their software in the process of correction :whistle:


Personally, I am pissed by the fact that it never crossed my mind to look for this error, specifically for our type of engine/implementation. I would have not find it... proving beyond any doubt that it is an ECU problem.
 

johneno

Guest
If the car has mapped cooling its usually the fault of the mapped cooling sensor that comes complete with the plastic water housing that fits on the side of the head! however you can get the same fault code on vehicles without the mapped cooling sensor, (oh yeah this sensor is not the temp sensor). This has been known to be a fault with the themostat housing and the fixture onto the engine!
 
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