Hi,

 

I would like to know what a normal turbo boost is for a 2011 Skoda Octavia 1.4 Tsi with 122 Bhp?

 

Thanks

 

Matt

Not sure, but even a fairly straight forward obd tool like torque will allow you to view boost reported by engine sensor and demanded by ecu. Or log the two.  Vcds will be better and better for logging but pricey if you dont use it much.

 

Ideally, they are very closely correlated (actual vs denanded boost pressure) . It'll be a small turbo, wouldn't be expecting huge pressure! Could be around 10psi, just a guess. 

2 hours ago, TheClient said:

Not sure, but even a fairly straight forward obd tool like torque will allow you to view boost reported by engine sensor and demanded by ecu. Or log the two.  Vcds will be better and better for logging but pricey if you dont use it much.

 

Ideally, they are very closely correlated (actual vs denanded boost pressure) . It'll be a small turbo, wouldn't be expecting huge pressure! Could be around 10psi, just a guess. 

Thanks for the reply.

 

I have a problem with underboost, but after much messing about with the turbo and the actuator, i got the boost from 0.1 psi to around 8 or so, but the boost does drop down.

 

 

What is the underboost problem and how did you diagnose it?