easier than pissing round with turbo hoses though!

Found the problem - gauge is knackered. Bought another one to test it, and it works fine. now got to mess about and send mine back to ebay. Great!

mines a mech one and it don't hiss at all,maybe an idea to put a pump on the end of the pipe to test the gauge and see if it leaks.

I think i must have punctured or split the pipe somewhere when fitting - will go buy a new pip and dummy fit it and try that

My mates on his astra is fine but its a digital 1 so there's no pressure near the actual gauge sounds like it is leaking

if it's a mechanical boost gauge and it's hissing I'd say the number one cause of that would be that it's leaking.

car is dirty - pics when clean

Pipe goes from gauge to the fuel pressure regulator. It buzzes / hisses / vibrates on full boost.

I will get another hose and replace it tomorrow to see if it is leaking, but it doesnt seem to be.

mine doesn't do this.
on another note..pics of car?

quote:

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Originally posted by loafofbrett
Mine doesn't hiss. Doesn't that mean it's leaking?

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Been a while since I had a gauge, but I'm sure mine didn't hiss. Doesn't that mean it's leaking?

Does the boost pipe go to the back of the gauge or to an electrical sensor under the bonnet?

I had a 1.8t golf and my gauge dis the same. Get it mapped and it will be worse. Perfectly normal

Morning,

Appreciate this is a Corsa site, but the knowledge of engines far surpasses mine, so i shall ask:

Fitted a boost gauge to my Octavia VRS 1.8T yeterday. Car is boosting fine and boosting to 0.7bar which is what i expected. However, on full boost the gauge hisses /rattles. It's not massively loud, but is annoying. Gauge is brand new and the takeoff is from the pipe on the fuel pressure regulator.

Any ideas why? Broken gauge? leaking / trapped pipe?