Carly Community
100% Free
No Scanner Needed
100% Free
No Scanner Needed
Carly Community
Controls exhaust air flow to reduce emissions.
User of our Carly Community asked the following questions regarding that fault:
Every car issue can be caused by different things. Here are the most common ones
Most Expensive
Moderate costs
Moderate costs
Cheapest case
Simply enter your email for free to unlock the costs.
If this defect is detected, it may lead to the following problems:
Gasoline engines require a rich mixture at cold start. However, this produces a lot of harmful exhaust gases because the catalytic converter and lambda control are not yet ready for operation. This is where the secondary air system comes in: It pumps oxygen-rich air into the exhaust manifold and triggers afterburning, which reduces exhaust gases and heats the catalytic converter quickly.
The secondary air pump draws in ambient air and the secondary air shut-off valve ensures that this only happens during the cold start phase. The control of the valve can be vacuum-based or electrical, depending on the vehicle age.
Based on the values and symptoms you have entered, a crude estimation of the probability of this problem can be made
HIGH