alexander_braun65
Skoda Fabia engine issues
Summary of the thread
A 2019 Skoda Fabia owner experienced engine issues, including a check engine light, reduced power, poor response, a whistling noise, and increased fuel consumption. The problem was suspected to be related to a boost pressure actuator fault or a faulty electrical bypass valve. Error code P0299 indicated an underboost condition, suggesting a boost leak or turbo wastegate issue. The solution involved replacing the electrical bypass valve, which resolved the issues and restored the car's performance.
Did this summary help you solve your problem?
4 comment(s)
alexander_braun65 (community.author)
Error code P0299 came up. You mentioned the turbo wastegate; could you explain that a bit more? I'm not really a car expert.
tobiasherrmann1
Error code P0299 points to underboost, which backs up the boost leak theory. The turbo wastegate is a valve that regulates the boost pressure from the turbocharger. If it's playing up (maybe stuck open because of the actuator fault), it can cause boost pressure loss. It's probably the actuator fault. With those symptoms and the error code, I'd get it looked at by a garage. Sounds like a turbo system issue.
alexander_braun65 (community.author)
I had the electrical bypass valve swapped out. Set me back 250€. The car's back to its old self! Thanks for the pointers; it helped me get my head around the problem.
rmh_community_comment_box_header
community_crosslink_scanner_headline
community_crosslink_scanner_intro
community_crosslink_scanner_title
community_crosslink_scanner_price
community_crosslink_rmh_headline
community_crosslink_rmh_intro
community_crosslink_rmh_title
community_crosslink_rmh_subtitle
community_crosslink_rmh_brand
SKODA
community_crosslink_rmh_model
FABIA
tobiasherrmann1
That sounds like a textbook boost leak. The whistling and hissing are dead giveaways. Did the check engine light throw up any specific error codes? Give all the hoses connected to your turbo system a once-over for cracks or loose connections. A dodgy turbo wastegate could also be the culprit.