ibiza cupra R not running right

fyfer15.

Guest
bought my new cupra r about a month ago and really like it but me and my mate also ibiza owners have realised that it aint really boosting right we vag com'd it about a week ago and only one fault code came up - something to do with the control unit ineffective so we cleared it but it still feels not right to make things worse i got thrashed by a chipped fiesta st and my mates cupra mk4 pulled away from me no problem at all :( would appreciate some help or suggestions?? cheers
 

Reuvers

I is a Dutch man!
Oct 30, 2007
3,374
0
Netherlands
bought my new cupra r about a month ago and really like it but me and my mate also ibiza owners have realised that it aint really boosting right we vag com'd it about a week ago and only one fault code came up - something to do with the control unit ineffective so we cleared it but it still feels not right to make things worse i got thrashed by a chipped fiesta st and my mates cupra mk4 pulled away from me no problem at all :( would appreciate some help or suggestions?? cheers

what did you guys say the cupra's were going for these days in the UK??


:whistle:
 

fyfer15.

Guest
cupra r still not running right

alright i posted a thread the other day about my cupra r not running right well this is it continued.... vag com'd it and got a fault code of 4074 coolant temp sensor and 4480 bank 1 mixture adaption air system. too lean so we replaced the sensor and then cleared the fault codes but yet the car stil aint running or having the power it should my mates mk4 cupra is still pullin away from me. can anyone help me or suggest anyting??cheers
 

cuprachrissy

Guest
dont worry about your fiends mk4 mate worry about your own car. do you have a friend who is a mechanic or have you tried doing a search at the top?
 

fyfer15.

Guest
aye my mate who is a mechanic has had a look and he aint sure what is wrong with it he has been in the guts of his mk3 cupra and its doing his head in as much as mine. havent got boost gauge yet so not sure what shes boosting at just thought i would see if the guru's would have any suggestions??
 

Adam R

Diesel ISN'T a Dirty word
Mar 5, 2007
2,851
1
lee in the solent
stop making multiple threads, just keep it in here.

Next have you got full VAG-COM or the trial version ? if you have the full version then do some logs of air flow, requested boost, actual boost etc etc etc. this will help us a little.

Also have you tried disconnecting the MAF ? if you disconnect the MAF and it run's better, it will be this at fault.
 

Reuvers

I is a Dutch man!
Oct 30, 2007
3,374
0
Netherlands
what are you basing on that the car is not running to its full potential, besides your boy racer experience...?

did any of the codes come back?
As said, the fiesta ST chipped should have you anyway, and your mates Mk4 is that standard?

Don't really need to much info on the other 2 cars tbh, as they are not the cars in question.

As said get a boost gauge, check for fault codes and try and do some logs.

Maybe someone near you that could help you a hand
 

Adam R

Diesel ISN'T a Dirty word
Mar 5, 2007
2,851
1
lee in the solent
The mk4 Cupra isn't that standard so it should pull on you really ;)

Could be many things. Might not be anything, just that you are comparing to the wrong cars. Has it had it's big service yet? Think it had around 60000 miles on it does it?

you know this guy ?

you should give him a few forum 'help' sessions before he tries to post again.
 

c41lum

Guest
afternoon

firstly i think the search button wont be of much use here! so telling this person to use it is pointless as he has a problem or believes there is a problem with the car but will not know what he is searching for. Hes not asking your every day question about dumpvalves or induction kits etc.
Being a new owner i expect knowledge of the car isnt great so why not post it on the forum which is full of people with far greater knowledge after all isnt that what it is for?

now reading into it i believe his so called "race" was set up between him and his friend with the cupra as a comparison because after all there shouldnt be much other than driver ability between the two cars. So if his friend was pulling away considerably then maybe there is a problem? it could be something as simple as a loose or split hose so any useful suggestions would benefit him or at least give the lad a starting point ;)
 
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Adam R

Diesel ISN'T a Dirty word
Mar 5, 2007
2,851
1
lee in the solent
afternoon

firstly i think the search button wont be of much use here! so telling this person to use it is pointless as he has a problem or believes there is a problem with the car but will not know what he is searching for. Hes not asking your every day question about dumpvalves or induction kits etc.
Being a new owner i expect knowledge of the car isnt great so why not post it on the forum which is full of people with far greater knowledge after all isnt that what it is for?

now reading into it i believe his so called "race" was set up between him and his friend with the cupra as a comparison because after all there shouldnt be much other than driver ability between the two cars. So if his friend was pulling away considerably then maybe there is a problem? it could be something as simple as a loose or split hose so any useful suggestions would benefit him or at least give the lad a starting point ;)

comming from someone with 1 post.........

RIGGHHHTTT.......................

searching will help, there are many threads on this forums that state that the owner should post up logs from VAG COM in the appropriate section to get performance help.

there are all the common things with these cars including coils, MAF's, engine coolant temp sensor, etc etc etc etc etc...

a search will bring up a whole wealth of knowledge that would help before he posts
 

c41lum

Guest
yes everyone has to have one post at some stage so no need to get sarcy ;)

If theres common problems why not suggest them you have just told me in your last post 3 possibilities already rather than giving the lad a bit of verbal. Again if he has no knowledge of the car or the problem it does make it a little more difficult to know what your searching for
 

Adam R

Diesel ISN'T a Dirty word
Mar 5, 2007
2,851
1
lee in the solent
yes everyone has to have one post at some stage so no need to get sarcy ;)

If theres common problems why not suggest them you have just told me in your last post 3 possibilities already rather than giving the lad a bit of verbal. Again if he has no knowledge of the car or the problem it does make it a little more difficult to know what your searching for


look at my first post in this thread #11 ;)


a quick search using , 'running slow' gave me a good few threads where all the possible faults are highlighted.

thank you, come again