Just a quicky, if you pull more air than the AFM can metre, what is cut, spark or fuel?

 

Cant find it in the manual or a bloody search.

You're unlikely to pull more unless you've got some big turbos on there.

There is a limit table in the ECU which 'stops the engine drawing more air' if you exceed a certain TP value (TP = f(rpm, AFM Voltage)).

Not 100% sure how it stops it drawing air, but I'd guess at an ignition cut.

The TP cut works by cutting the fuel (injectors stay closed) ..

the engine would flood otherwise.

hmm...2 opposing answers hehe! :)

 

Well the turbos that are on there a Technics Stage 2's set up at 20psi, i heard that the AFM runs out of puff at about 480hp?

 

I was wondering if I was exceeding this and causing my "missing" problem in my other thread..

There's only one good way to tell and that's by monitoring the AFM voltage:

if you're able to reach voltages of around 5.1-5.2 volt, then you are exceeding the capabilities of the AFM and you need to look at a dual intake system (with single or dual MAF) or at a MAP based system (like the MAP-ecu or HKS VPC)

ok guess i better find a way to read that voltage then :)

 

Dual MAF is on the cards, but this lump only been in a week and i want to see if its a problem with anything first or if Im just pulling in to much fresh stuff