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- Thread starter Cupra k1
- Start date
Have any of you loads had any dealings with atmospheric blow off valves on the 2.0t fsi engine thoughts?
Cheers I just received it in the post :/ will it do any damage as I know the 2.0 tfsi engines are fully recirculating, whereas this is obviously venting atmosphericly?
I don't know a lot about it just googled it
In the case where a*mass airflow sensor(MAF) is used and is located upstream from the blowoff valve, the*engine control unit(ECU) will inject excess fuel because the atmospherically vented air is not subtracted from the intake charge measurements. The engine then briefly operates with a fuel-rich mixture after each valve actuation.
The rich mixing can lead to hesitation or even stalling of the engine when the throttle is closed, a situation that worsens with higher boost pressures. Occasional events of this type may be only a nuisance, but frequent events can eventually foul the*spark plugs*and destroy the*catalytic converter, as the inefficiently combusted fuel produces*soot(excess carbon) and unburned fuel in the exhaust flow can produce soot in the converter and drive the converter beyond its normal*operating temperature*range.
In the case where a*mass airflow sensor(MAF) is used and is located upstream from the blowoff valve, the*engine control unit(ECU) will inject excess fuel because the atmospherically vented air is not subtracted from the intake charge measurements. The engine then briefly operates with a fuel-rich mixture after each valve actuation.
The rich mixing can lead to hesitation or even stalling of the engine when the throttle is closed, a situation that worsens with higher boost pressures. Occasional events of this type may be only a nuisance, but frequent events can eventually foul the*spark plugs*and destroy the*catalytic converter, as the inefficiently combusted fuel produces*soot(excess carbon) and unburned fuel in the exhaust flow can produce soot in the converter and drive the converter beyond its normal*operating temperature*range.
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