Power loss, poss boost problem?

[hodgy0_2]

Hi guys

first post so bare with me!

I have a 2.5TDI quattro (see pics)

in the main, very pleased with it

but it seems to really lose all power, only sometimes though, at first i just though i was catching it "off boost", or some sort of niggle with the tiptronic system -- but its not that, its almost like the turbo suddenly vents to air, with my foot flat on the floor, nothing (the rev needle sits at 3k) as I let my foot off, the urge comes back

other than that it drives superbly -- any ideas

thnks - hodgy

 

[arthurfuxake]

I'd get it checked on Vag-com for any error codes, sounds like a stuck egr valve. All error codes are stored, so befriend someone on here with vag-com.

 

[quattrojames]

:sign_welcome:

I agree with arthur, get the codes scanned, similar symptoms on mine pointed to the MAF.

 

[hodgy0_2]

cool thanks guys

so next question is - does anyone know a Vagcom guy in the Cambridge area, maybe a mobile guy


and what does the "check" button do on the dashboard, will that not show the codes

Cheers

 

[technics100]

Check button will not show codes. Someone should be able to help you or else you can buy a lead from ebay for £15 and download a shareware version of the software to read codes..

 

[quattrojames]

and what does the "check" button do on the dashboard, will that not show the codes

The "Check" button just performs a self test on things light bulbs and fluid levels.

 

[hodgy0_2]

Check button will not show codes. Someone should be able to help you or else you can buy a lead from ebay for £15 and download a shareware version of the software to read codes..

have you link to the shareware version, and is the lead a standard ODB11 one

do halfrauds do these leads?

 

[hodgy0_2]

ok apologies I,ve got the shareware

but in the meantime took it to my local garage who put it on a "vagcom" type thingy

the codes are 00542 shock sensor nozzle needle g-80 -----

00575 Manifold absolute pressure control limit exceeded - intermittent

01375 Engine mounting valve step -----

17978 - Engine ECU Blocked P1570

all the codes cleared apart the first one

I am thinking that the 00575 one could mean its overboosting, hence the feeling of no boost as it just shuts the turbo off

any thoughts