Questions from the book

Hello.

Im just bought the E-book ant started to read and watch videos.
Already on page 12 i have some questions.

Map-sensor. Higer pressure give higer voltage?
When leak is created, the pressure rise, and more fuel is injected, and therefore.
More fuel and higer pressure give the rise in rpm?
Or is it just the "throttle by pass", created by the leak, that give the rise in rpm?

On a MAF engine, the leake will give "un-measured" air to the engine. The engine fuel mixturewill go lean, and therefore the rpm will drop?

Can you please correct me if i got it total wrong?

Thank you very much, and best regards from Sweden
Nilsson

Thank you so much!
Question 1: yes! high psi = high voltage (more on that in chapter
2. yes, pressure rise in the manifold = higher MAP signal and to the computer this is more of a load, so you get more fuel, so now you have a higher RPM (more air and more fuel)
3. MAF engine it is not detected, so you have additional airflow into the engine, causing a lean condition and a low idle. At least until the fuel trim compensation comes into play.
You are good man! Keep it up!

Thanks.

Chapter 1, 42min into the video.
So all cells in the RPM/Load map did not have the same short and long terms fuel trim? The engine learn individually for all cells?

You are mentioning a specific video right? On premium or YouTube?
Either way, for specific questions from a video, it is better to ask them right in the comments section under that specific video. I spend most of my time answering questions there and let my moderators handle the forum for me.

Thanks.
Yes a premium video.
I have ask the question in the video comments now.
Best regards