Negative Terminal Trick

[sie77]

I recently purchased a 2002 Cupra 180 and after coming from a 130 car it actually didnt feel much faster so i decided to remove the negative terminal for 30 mins and see if there was any difference.

Oh boy was there a difference it actually felt like a 180bhp car and sent you back in to your seat, turbo seemed to be louder aswell.

The problem is that its been a few days and it seems to have gone back to how it was before is there anyway to keep it at full power or is it a fault as it reverts back?

i wouldnt say i drove like an idiot but i do like to put my foot down now and again.

any suggestions would be appreciated.

 

[Willie]

Get a diagnostic done on VAG com to see if there are any issues

 

[sie77]

Sorry may be a stupid question but do i need to take it to the dealer for that?

 

[Willie]

There are members on here that have the similar package that the dealer have that will be able to read any fault codes for you.
Take a look in the vag com section to see if there are memebers in your area that need a free beer or two

 

[andycupra]

what fuel are you using?

and you have definately not 'just got used to it'?

 

[Ruddmeister]

Sorry may be a stupid question but do i need to take it to the dealer for that?

No you can do it yourself.

But if it goes back to lower performance like the above scenario then it's an indication the ECU is picking up a problem (logged as a Fault with a code) this will identify the problem e.g. a faulty sensor or boost leak etc.

The likely reason the car is going slower is that the car is running in 'limp' mode to protect itself until the fault is rectified.

The ECU also learns and adapts to you and your driving and the battery disconnect will reset the adaptation on that too.

It may help or may just indicate a bigger issue which can be identified at a garage or with some aftermarket software and a laptop.

With the battery disconnect being free it's worth a shot

 

[sie77]

There are members on here that have the similar package that the dealer have that will be able to read any fault codes for you.
Take a look in the vag com section to see if there are memebers in your area that need a free beer or two

Cheers i'll take a look.

 

[sie77]

what fuel are you using?

and you have definately not 'just got used to it'?

Standard unleaded as far as i know.

I was thinking about this earlier i don't think so, the car just doesnt seem to pull as much as the day i took the terminal off.

 

[sie77]

No you can do it yourself.

But if it goes back to lower performance like the above scenario then it's an indication the ECU is picking up a problem (logged as a Fault with a code) this will identify the problem e.g. a faulty sensor or boost leak etc.

The likely reason the car is going slower is that the car is running in 'limp' mode to protect itself until the fault is rectified.

The ECU also learns and adapts to you and your driving and the battery disconnect will reset the adaptation on that too.

It may help or may just indicate a bigger issue which can be identified at a garage or with some aftermarket software and a laptop.

With the battery disconnect being free it's worth a shot

The car at the moment isn't exactly slow but i can deffinately feel a difference i think the best bet is this VAG COM thing see if there are any errors and go from there.

I will also take off the terminal again tomorrow and see if it makes a difference, if not i guess i have just got used to the car.

Thanks for your help.

 

[Ruddmeister]

if not i guess i have just got used to the car.

If that's the case it means only one thing, it's time for a remap

 

[mrvavavoom]

If that's the case it means only one thing, it's time for a remap

i second that

 

[cupra_paul]

i would hazard a guess at a maf sensor, comon as fook on these engines but you need to get it code read first

any good garage will be able to scan your car for you look for prices around £30 any more than that your getting ripped

 

[truCido]

i would hazard a guess at a maf sensor, comon as fook on these engines but you need to get it code read first

any good garage will be able to scan your car for you look for prices around £30 any more than that your getting ripped

Or buy a lead yourself for £15, or buy a beer for a SCN member and get them to do it