What is a MAF?

[nextguy2013]

What is a MAF and what does it have to do with me removing the hose connected to the stock blow off valve to the intake?

 

[JusMX141]

The Mass AirFlow sensor meters the airflow that enters the turbo system.

If you disconnect your BOV dump tube to sound like every other ricer DSM owner, you'll be releasing air to the atmosphere that has already been metered and the ECU has already compensated for, causing a rich condition.

Those who remove the recirculation tube from their blow off valve are sacrificing the car's performance for sound, and are thereby labeled a "ricer".

 

[9!'clipseDOHC]

Someone didn't even try to search.

A MAF is a Mass Airflow Sensor. It tells the ECU how much air is entering the engine and therefore how much fuel to add. When you push the clutch in the excess boost goes through the BOV back into the intake tract. The ECU has already accounted for this air so it adds more fuel when you get back on the gas. If you remove that hose, the excess boost is vented into the atmosphere but the ECU still thinks that it is there and adds more fuel but since the air is not there you will run rich. This will negatively affect both gas mileage and performance and can even affect drivability.

Try searching in the future; people get tired of answering the same questions over and over again.

Hope this helps.

 

[nextguy2013]

Haha well i dont want to be labeled that. But what do you mean by "rich" condition?

Sorry guys, when i bought the car, there was no hose connected and te opening for the intake was closed by this little cap. 1st DSM...

 

[9!'clipseDOHC]

Haha well i dont want to be labeled that. But what do you mean by "rich" condition?

Rich refers to your air fuel ratio (AFR). It means that there is too much fuel and not enough air in the combustion chamber. Lean is the opposite, too much air and not enough fuel.

 

[Calan]

I understand the exictement of a new DSM and wanting to learn everything at once, but all of these questions that you've been flooding the forum with have been answered countless times. I would suggest taking advantage of the wealth of information already posted on the site, and just reading for a few days (or more). After that, come back and and post questions if you are still unsure of something.

The "Tech Guide Index" menu at the top left is your best friend. Here are a few links from that page to get you started:

Top 10 Most Popular DSM Q & A's - DSM Forums
1000 Already Answered Questions - Index page
VFAQ Site - Visual Frequently Answered Questions
Frequently Answered DSM Questions - DSM Forums

 

[snowborder714]

Please use the resources provided above, as well as Google and wikipedia. The search function on here is useful, so please try and use it in the future.