Altea 1.9 tdi power loss

[sargy2]

Hi,
New to this forum... Can anybody help!!!
Engine warning light has come on and i have seriouc lack of power and puffs of black smoke come from exhaust
HAD ON DIAGNOSTIC AT SEAT BEFORE DUE TO SAME PROB..... fault was a dirty MAP sensor... once cleaned was ok but 4 months down line it has started again!!

The question i have is i`ve cleaned the map sensor which was oily, with elecrical solvent and put back in but no joy... is this because i need to do a reset first to clear the codes?????

Help would be much appreciated.

 

[Toxic]

can't see the fault not being cleared being the issue. I take it the car is out of warranty? best get a new MAF sensor it has probably failed if your getting the same issue again. Give David a shout over at his forum for a price.

http://www.seatcupra.net/forums/forumdisplay.php?f=249

problem is why is the maf sensor oily? do you use a K&N air filter?

 

[sargy2]

hI,
It`s the map sensor not the maf.... i was wondering the same tho why it was getting oily?
I had an oil change before the probs started come to think of it and maybe overfilled it.
Even tho i`ve cleaned it or just for example i replace a faullty sensor, does the fault codes need clearing ?

A garage i use for m.o.t has a snap-on diagnostic machine and he reset it and was fine until the following day when obviously the fault was still their but that was before i took it to seat who pinpointed more accuratley on there machine.

 

[Toxic]

sorry your wrong, MAP Sensor?. MAF = Mass Air Flow. you find MAF Sensors fitted to the vast majority of cars these days.

If you car has a MAP sensor fitted then maybe thats whyyour car isn't working

 

[sargy2]

Yes MAP SENSOR... FITTED ON PIPE IN FRONT OF RADIATOR ON 1.9 TDI, think the pipe is the outlet that goes from the turbo! I know what a maf sensor is . This is fixed to air filter box... I even have report from SEAT saying map sensor was cleaned.

Light has gone out today and runs spot on nowanyway so think the cleaning solved it for now.