Engine shut down under boost - fail safe?

[scopes]

 

Yes when i had run the catchcan, i noticed it was the same, the hoses used to be filled with all that gunk, aswell as the catch can... 

As for a dodgy earth, where do i start looking ????

It's not something i have had to do before! 

 

[H17YD_L]

Sure I read that Nick from R-Tech had an ongoing fault with a MK5 and had to check all the earth points and made the comment there were loads lol!

Start closes to the battery, then just tighten up everyone you see in the engine bay, might be nothing to do with it but if the clocks are dropping and battery light flashing, thought it might be worth a try

[vRSAlex]

What plugs are you currently running Neil?

[rich83]

Same happened to my scopes the other day. Car had not been out for a few days and it didn't like being give full throttle. Power cut and out clocks dropped for a split second and then came back on again. 

[scopes]

Sure I read that Nick from R-Tech had an ongoing fault with a MK5 and had to check all the earth points and made the comment there were loads lol!

Start closes to the battery, then just tighten up everyone you see in the engine bay, might be nothing to do with it but if the clocks are dropping and battery light flashing, thought it might be worth a try

Cheers matey, it is something I will have to look into, if I remember right, someone had posted up all the earth points, as they thought that was causing a problem they had...

 

[scopes]

What plugs are you currently running Neil?

Hey Alex

New OEM plugs fitted (2000) approx, miles ago, changed from Nology plugs as they where throwing up a fault with the intake runner, as soon as the OEM plugs were fitted the faults cleared all was good then.

 

Same happened to my scopes the other day. Car had not been out for a few days and it didn't like being give full throttle. Power cut and out clocks dropped for a split second and then came back on again. 

Was it like, the rev needle was bouncing then going to cut out?

[scopes]

When the car died... did all the clocks drop to zero too??

Was out testing there now, the only needle that drops is the RPM one, the rest stay up, the speedo tells me my speed ok, fuel gauge ok, plus temp gauge ok...


Is there any logs I can run for testing or to rule anything out, any basic settings needing done?

I now have a stinking smell that blows the heaters when the car is stopped, but seems ok when driving!
Only from the weekend have I started to notice this.
 

I find the car is driving the very best bar these few problems 

At my wits end guys, just not to sure where to start now! 

All help is gratefully appreciated 

[rich83]

It didn't bounce... It was like I had turned the ignition off and back on. No fault codes stored

[rich83]

Mine it still doing it.  Gets to 5000 rpm and sh*ts it's pants. An error has been thrown up for the engine speed sensor.

[scopes]

Could a faulty downpipe lambda sensor cause any of these problems????

[bacillus]

Could a faulty downpipe lambda sensor cause any of these problems????

Highly unlikely Neil. Also a bad lambda sensor should give a fault code on vcds scanning.

[Pikey Motorsports]

ive had it on a few tuned 2.0 tfsi usually when pulling upto a stop

[scopes]

Could a faulty downpipe lambda sensor cause any of these problems????

Highly unlikely Neil. Also a bad lambda sensor should give a fault code on vcds scanning.

I was thinking that too matey    Just trying to rule things out, anyone have a approx. price of a new one...

Also found out what the smell was when the heaters were on, some grease on my engine block    all cleaned of and smelling fresh again ! 

So that's one problem down.... 

ive had it on a few tuned 2.0 tfsi usually when pulling upto a stop

Yes matey, that's exactly when mine happens, when the car is coming down of boost, not even from when an extremely large amount of boost has been given, just a blip, if I hold the clutch down when coming to a stop, that's when the rev drop/bounce, then the revs must drop to a degree where it stalls or cuts power...

Any idea, what caused it Pikey?

[bacillus]

New one is around £150 from VW.

ECP do the same one, a Bosch for 134 notes.
 http://www.eurocarparts.com/ecp/c/Volkswagen_Golf_2.0_2007/p/car-parts/car-body-parts-and-car-exhaust/exhausts/lambda-sensor/?710444675&1&1a83a8bc47d4142a7b8f26063943ab06bf10e01d&000210

[scopes]

The difference between the two is?

just the brand name?