Fitting a downpipe can trigger a check engine light, especially a catless one I heard of dummy sensors but i don't know where to look Here is why it happens and the right way to fix it for good.
Why Does The Check Engine Light Stay On After Fixing Problem: Complete
This article aims to guide you through troubleshooting these issues effectively.
You do not need a tune, but you will get a check engine light when running the stock tune with a test pipe or high flow catted downpipe
This check engine light will not affect driveability or. To fix a check engine light caused by exhaust issues, first, conduct a diagnostic to confirm the source Then, ensure the aftermarket exhaust is properly installed and compatible, or revert to the stock. I'll likely put it back up in a week or so when i work on the installation of an rs grille, and take the opportunity then to try a different flow restrictor size
At the very least, even with the 'too lean'. There are three ways to reset the audi a4’s check engine light We recommend trying to identify the problem and fixing it before resetting the check. Diagnosing the check engine light on an audi a4 requires systematic steps to identify the root cause
If you get a check engine light after installing it, pay the $100 to upgrade stg1 to stg2
The downpipe doesn't add any hp at all All the added power comes from increase in boost. Does anyone know how to get past the check engine light when you install the downpipe without a tune
