Power, No Power, Power No Power.

[ianbin2012]

Apart from other problems whilst out driving today when i go to accelerate up an incline or hill, the best way i can desribed it is as if you are dabbing the brakes every couple of seconds.

This only happens if you floor the accelerator ,if using only lightly it does not happen.

On the flat or downhill no problems.

When this happens i can hear the turbo spooling up and down.

Could this be as simple as vac pipes or something a little more tricky?

[alan_131]

All good fun...

Not come across anything quite like this before myself, but I bet someone has.

your profile says 1996 tdi, might be worth expanding on this a bit for this problem. Engine power, manual/auto, trim level..any vcds codes....

Edited July 30, 2012 by alan_131

[ianbin2012]

Its a 1996 1.9 tdi 90bhp manual glx 150,000 miles on the clock in good condition.

Hope this helps.

Vcds check

 

address 01: engine

labels 028-906-021-ahu-lbl

controller-028-906-021-p

component 1.9l r4 edc sg d3e

coding 00000

shop#wsc00000

 

fault found 00553

mass air flow sensor (g70)

31-10-open or short to ground intermittent

 

abs/eds ittae 04 g1 vdo

 

controller 7mo907379a

 

after doing a full scan this is what it came up with.

Edited July 30, 2012 by ianbin2012

[seatkid]

Looks like a connector or wiring fault in the loom to the MAF sensor, start by disconnecting/reconnecting the MAF sensor.

[ianbin2012]

Ive changed the maf and it still happens but just as a test i disconnected the maf with the engine running and it made no difference whilst standing still but as soon as you start driving the car runs flat with no power, reconnect the maf all is good until you hit a hill and put your foot down.

[seatkid]

You need to trace the loom back from the MAF sensor to check for chafed wiring (shorting) or bad connections.

[ianbin2012]

Will do, i will let you know.