[Vegashybrid]

Sounds like a bad diverter valve diagram or turbo going bad. Do you have a mechanical boost gauge installed by chance?

 

[Vegashybrid]

No I don’t

on yea it does the car is brand new

So you do or don't have a boost gauge installed? Brand new car has nothing to do with it parts can be faulty from the factory. And boost gauges or typically install without reducers on there so they get too much air pressure in them causing an almost identical sound.

 

[Vegashybrid]

My car is fully stock no engine mods

A boost gauge is not an engine mod ,far from it. At this point as others said needs to be taken to a dealership. You've provided no codes or pictures so diagnosing is basically impossible and as stated the car is brand new.

 

[Vegashybrid]

Thanks I take it soon

there is no code to show the car runs fine it just make that noise

Codes mean absolutely nothing nowadays. Did you plug it into a scan tool or reader and confirm there are no codes or are you just not seeing any on your dashboard. If your car is making that sound it's not running perfectly

 

[Vegashybrid]

That's a def boost leak of some kind. It could eventually over rev the turbo. I really dislike the lack of consumer scan tool options for Honda.

 

[Vegashybrid]

This is exactly why I feel that every car that comes from the factory with a turbo,/sc should have a boost gauge. It's a very simple piece that is invaluable as a preliminary form of diagnosis on a turbo/sc car. Just put it in 4th grear or so and floor it without making it downshift (of you have an auto). If your not hitting max boost you know you have a problem somewhere. Now finding a small boost leak is another entirely lol. Luckily small leaks are usually clamps, or become a bigger leak pretty soon. But sometimes even smoking a car it can be a nightmare.

 

[Vegashybrid]

Ok so I may have found an issue to the scan tool issue. I'm very interested in this thing I'll start a new thread soon but basically we used something similar on VAG cars. If it really gives you the same functionality as the Honda factory tool does (and from the videos I saw it does), it's basically the Honda VAG tool I have been looking for. I may try one myself just to see the hidden functions ect, especially considering the cost. The VAG tool is like four times the price, but just about EVERY enthusiast has one. There is usually some really really cool stuff built into the factory programming. Things like quicker shifting, torque steer mitigation, steering weight, and tons of other things dealerships charge you and arm and leg just to make a couple clicks on the computer. Anyways take a look I'll investigate more when I have some time super busy lately. There are several sellers just first link I copied

V3.104.024 HDS HIM Diagnostic Tool for Honda with Double Board

V3.104.024 HDS HIM Diagnostic Tool for Honda vehicles from 1992-2020, supports CAN BUS system, allows you to re-program the Auto ECU.

www.obdii365.com

 

[Vegashybrid]

You may not be able to change shift points per se, but for example it may make them quicker. The torque steer mitigation system was awesome, helped the wheel stay more straight so you had to compensate less. There's tons of stuff hidden and can vary from modern ect. Here's a quick example I googled and that's just a small part of the list. But let's say just for resample you wanted to add distronic or whatever they call them, mirrors to your Civic, you would still need to code it. Things like this solve problems with upgrades like that. Most of this stuff is being included in the right to repair act in the govt right now.