Boost dip after 4200 rpm

[reidy123]

I have a 2000 seat leon 1.8t sport and has been fantastic, but of late it has develpoed a problem about 4200 revs seems to be a dip in pressure does this in 3 4 5 but then takes of after a few seconds again. Have changed plugs, oil, flushed engine checked exhaust and cleaned the maf and put a fuel cleaner through any ideas on what it could be?

 

[seantdi]

try getting someone with vag com to scan it for you

 

[volvic]

if vag com shows nothing, when was the fuel filter replaced? is it over due?

reading your post again.... this might sound stupid, but does it still happen when you turn traction control off?

 

[slim20vt]

cleaned the maf? dosent always work, vag com need to see what the ecu has logged.. could be fuel filter? more like maf ...... need to no some more..to help..

 

[reidy123]

Going to get it to local seat dealer to hook it up to the vag com, and the fuel filter is due, wasn't changed on the last service. And it is the same with traction off

 

[danieltm]

Unplug the maf and take it for a drive, if the problem has gone you need a new maf. I reckon thats the problem

 

[reidy123]

i have unpluged the maf and taken it for a drive and car was back to its normal self, can i run it with the sensor unpluged untill i get another sensor delivered or will this fowl something else up?

 

[reidy123]

Does anyone know if i can run with the maf off till i get one sourced and on the car?

 

[danieltm]

Does anyone know if i can run with the maf off till i get one sourced and on the car?

No mate, I wouldnt do that. Just drive to GSF Take the old one off when you are there exchange it for the new one, put the new one on drive off! Job done. Think there are about £70 ish