Ok could some one help me out here?

Am i right in my understanding that the ICV regulates the air flow into the inlet manifold when the throttle body is closed so stopping the engine from stalling or is the throttle body set up so that its never totally closed?

Also can someone explain to me what it is the MAP sensor actually does? i know it reads the Manifold pressure but for what reason?

Cheers Mark

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Peugeot 306 GTi 6
BMW 320 td compact M-sport
1967 Mini Cooper
1990 Jaguar XJR 4.0

Ah cool so the ICV compensates for the 'off' throttle position? if it requires more air the ICV opens to regulate the revs?

With the MAP sensor i assume then that as the inlet valve opens and the piston increases the vacum the MAP recognises this and the injectos squirts the correct amout of fuel or are the injectors contantly firing and only regulated by the lamda?

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Peugeot 306 GTi 6
BMW 320 td compact M-sport
1967 Mini Cooper
1990 Jaguar XJR 4.0