petervogel98
Honda Brio Power Loss Whistling Noise
Summary of the thread
A 2021 Honda Brio experienced power loss, poor engine response, a whistling noise during acceleration, increased fuel consumption, and a check engine light. These symptoms suggested a potential issue with the boost pressure actuator. After consulting with others and considering the symptoms, it was advised to have the vehicle inspected by a professional. The workshop confirmed the problem was indeed the boost pressure actuator, which was replaced, resolving the issues.
Did this summary help you solve your problem?
4 comment(s)
petervogel98 (community.author)
An electrical bypass valve? Where is that usually located, and could I check it myself without specialized tools? Is it linked to the pressure sensor or the turbocharger?
emmameyer86
On my Astra, it was near the turbocharger, easy to see. It is hard to check without proper tools, you could check electrical connections, but not much more. Given all those symptoms—the light, power loss, and noises—and the mileage, you might have a boost leak or something wrong with the actuator itself. I'd recommend taking it to a trusted workshop. Best case it's a simple fix, worst case, you prevent further damage. I learned that the hard way!
petervogel98 (community.author)
I appreciate the advice! I'll take it to a shop since it's probably beyond my skillset to properly diagnose and fix. You were spot on! The workshop confirmed it was indeed the boost pressure actuator. Cost me around 250€ to get it replaced, but the car is running like new again. Thanks again for pointing me in the right direction!
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
HONDA
community_crosslink_rmh_model
BRIO
emmameyer86
Sounds familiar! I had a similar problem with my 2017 Opel Astra (diesel): check engine light, loss of power, weird noises. For me, it was a defective electrical bypass valve. Does the Brio have something similar controlling the turbo boost?