35i MAF or MAP sensor

Not an expert on the Z4 but my last car had both, mass air flow and mass absolute pressure, do different things in the system

The MAP sensor requests more fuel as you drive, while the MAF controls the air entering the system in very basic terms.
 
Ole gits rule said:
Not an expert on the Z4 but my last car had both, mass air flow and mass absolute pressure, do different things in the system

The MAP sensor requests more fuel as you drive, while the MAF controls the air entering the system in very basic terms.

Maf measures the amount of air so the ecu can adjust the fuelling accuracy, the map sensor measures boost pressure to also monitor the fuelling requirements :thumbsup:
Rob
 
No maf, it has 2 pressure sensors, one on the chargepipe and one on manifold. The manufold one mainy measures vacuum and maxes out at 10psig, the chargepipe one maxes out at 21.5psig
 
Smartbear said:
Ole gits rule said:
Not an expert on the Z4 but my last car had both, mass air flow and mass absolute pressure, do different things in the system

The MAP sensor requests more fuel as you drive, while the MAF controls the air entering the system in very basic terms.

Maf measures the amount of air so the ecu can adjust the fuelling accuracy, the map sensor measures boost pressure to also monitor the fuelling requirements :thumbsup:
Rob
Knew it was something like that - not my strong point all these sensor - give me a hammer to free a starter motor and I am fine :rofl:
 
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