traction control gone?

[sparkyc]

was driving earlier with the traction control on, gave it a bit of boot and when i came on to boost in second gear felt bit of a jolt which i guess was the traction control kicking in but werent for long, slow'd down for around about not far down the road looked down an the traction control light was on and now cant turn it off( or turn the traction control on as it were!) then bout ten miles down the road the engine management light came on?? anyone got any ideas?

 

[Jimski]

I saw this happen on a cupra ibiza once and it was the MAF dude, try and get someone with VAGCOM to plug you in and check whats going on!


Jimski

 

[Nev_LCR]

would be a dream come true for me, save turning it off all the time,

 

[sparkyc]

the maf? isn't that the air sensor just after the air filter?? any one with a vagcom near st albans herts?!

 

[zippy12]

Mines just done the same and i was told the MAF so i got it changed and everything was ok till yesterday when the traction control light came back on, its gone off again now but i'll have to get it check out again.

 

[DPJ]

Your MAF has failed.

 

[swilky23]

touch off the thread here maybe but is the maf connected to traction control in some way because my EML came on the other day and so i tried unplugging the maf an taking for a drive and while it was unplugged the traction control light stayed on. needless to say the EML is still on, I am waiting on vag-com could it be the maf?

 

[MJ]

The TCS control unit needs to know how the engine is being used in order to correct any mistakes being made, it corrects these mistakes - like wheel spin buy cutting power to engine by restricting the air flow (the ecm will partially close the throttle body for a few milliseconds) this cuts power instantainiously, drops the revs and prevents wheel spin.
However it relies on several sensors like the MAF (mass air flow sensor) to keep the engine going and feed the control unit the correct info. If the signals are out of there tolerences then it can cause problems i.e if you were to boot it and the traction control was to kick in (but your MAF was taking a very weak signal) the engine may stall because the throttle body had closed too far. this is why it throws the light on and completly shuts down the traction control - better to loose one system completly than to have several faulty ones.
Realisticly if the MAF sensor is faulty then your performance should also be lagging.

Just some info - hope you find it useful

 

[sparkyc]

just had it vagcom'd down scc( great blokes always willing to help!!) and you were right, faulty maf code!! although thought the traction control was linked with the brakes and abs etc etc??(hace a LCR not LC if that makes any diff) seems to be running ok but will order new one on monday so should have it by tues and see what happens!

 

[MJ]

TCS control unit is the ABS unit. all the electronic jiggery-pokery that prevents you from doing cool burn-outs and trick looking slides all lives in that little box behind the ABS hydrolic unit

 

[sparkyc]

o i see, makes sense!

 

[roberts189]

Helpful thread thanks, did the new MAF work??