SOLVED. Camaro 1999 3.8L, engine stalls on hard braking.

Описание: I have a problem with my Camaro 1999, 3.8L. As you can see on the video, the engine stalls on hard braking, even on neutral. I have 2 ideas for now - bad alternator (because voltage drops significantly on hard braking) or bad brake booster (as I read, it may have a vacuum leak, which leads to unstable idle). I will play with it in the near time, however, if you have experience already and can help me, it will be really useful. Thanks

Updated on 12/14/2025. An important note that was not mentioned before is about a hard warm start. Because fuel went to the vacuum system, it makes the mix too rich. The engine required longer cranking and the use of the accelerator pedal. To diagnose a problem with the fuel pressure regulator, detach the vacuum hose from it and crank the engine for several seconds. If you see gas there, what goes from the vacuum fitting, that's it. Link to the video about its replacement in the comments. Please pay attention, this problem is dangerous and car may be burnt out https://www.facebook.com/sega243/post...[0]=AZYrI_qRMPZOG9eHrxg1ugSMXSAjVzyyfdIB3i8F_1-nKQDMdEHEPDijtRh2NwbhKulwxHwBMfLXAm-ZTXZGnf4UgCrx4OffQrhIVNpjyREwA7yj2hHQcgDX55WUI6WGyWtHm8AW70PbA92LfofHqM1NzqZvWgC2a_x9unpkM9B2ihAUKq6doOD7o-mK9ZEVYC18ml5wp-pJVygwcDa3s3h2XyCjquROHil-WUvy_F8ZI48w6y-BsL9ah9Dpu8heWMk&__tn__=%2CO%2CP-R