MAF Air Reading Question

[FreeJack]

Greetings,

Today I was looking at my readings off Turbo Link and at WOT I'm reading between 200 and 230 on my MAF sensor. Someone told me that it should max out at 255 for the ECM to think it was at WOT. It this true? Or is these readings normal?

 

[Eric Stage I]

Thats not uncommon if you're running lower boost levels with a stock turbo, like 14-15psi. If you have a bigger turbo with over 15psi, then you should be close if not pegged at 255 at full boost. The computer does not need to see 255 for any particular reason, it uses the airflow number to compute fuel. If you are at 230, the computer will simply supply fuel for 230. There's nothing wrong with this as long as you're not too lean.

Regards,
Eric

 

[FreeJack]

Thanks Eric,

I had an idea that might be the reason.