1G ? about logging on a 1G, Im a logging newb

[SnowBird]

I'm trying to determine if I am getting fuel cut at 12psi with my FMIC. I'm logging the MAFS and its showing in hertz. I was told anything over 2 grams per rev was too much on the 1G MAS, but I don't understand what the hell the HZ is telling me. So far it doesn't go over 1600hz at 7K.

Can anyone give me some insight as what to look for?

Just wondering whats the threshold for the MAFS option is.

 

[toofast82]

The max that your logger will see is 1606hz. It can be coded into the ecu's eprom to allow the logger to read up to 3212hz. I believe you will hit fuel cut at 100%+ injector duty cylcle so you may want to check your logs on that. Have you done any hacking to your mafs?

 

[SnowBird]

No, I havent hacked it at all. So youre saying to monitor the duty cycle on the injectors? I will give that a try. Thanks.

 

[toofast82]

I would also recommend a boost leak test if you havent done very recently

 

[SnowBird]

I would also recommend a boost leak test if you havent done very recently

Have done it a million times. I ran into this problem when swapping over my engine from one car to another. I use to be able to run 15lbs all day and then I ran into a "pop" at 12lbs. Ive since then put on a FMIC, new intake manifold, fuel pump, and other random stuff. I cant figure it out at all and its pissing me off. I shouldnt be hitting fuel cut at 15psi on a 14b even with a FMIC.