How to check the turbine on gasoline turbo engines. Coding and diagnostics using the KKL Adapter and VAG COM, VCDS, VAS, VCP, ODIS, etc. Collection of codings VAG Group
AvtoAd
24/05/2022
AvtoAd
24/05/2022
In the vast majority of VAG turbocharged engines, the turbine can be tested by measuring the boost pressure sensors or the degree of opening of the westgate. Depending on the type of engine, we will need channels 114/115 in the Measurements, or Channel 025 (only with the opening of the N7S valve).
Before trying to determine whether the turbine is alive, by studying the indicators of the sensors, it is desirable to visually inspect and assess the following: whether the turbine is not overgrown with oil in the literal sense, whether the engine smokes during operation (strongly), and remove the intercooler and make sure that there is no or almost no oil in it (if there is a lot of it, the turbine is almost inoperable).
1. Connect VAG-COM, open the engine, select 115 channel.
2. Make sure that the necessary pressure is gaining. The first window should display the required pressure, and the next - the actual pressure.
3. We watch channel 114. When the engine is supercharged, the percentage of Westgate operation should be no more than 80. If it exceeds 80%, the turbine runs at full capacity.
1. We go to Channel 025.
2. Obtain the degree of opening of the valve N-75, the principle of verification is the same as described above about channel 114. That is, the% of valve opening should be no more than 80%.
Done!
Read about Vasya Diagnost's VCDS coding here.