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the ecu's don't really rely on the map sensor. the fuel cut (known as rich and retard) is activated by the afm signal. once it gets to certain parts of the map the ecu says "oh no you don't sonny" and dumps in a heap of fuel and backs off the timing.

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the ecu's don't really rely on the map sensor. the fuel cut (known as rich and retard) is activated by the afm signal. once it gets to certain parts of the map the ecu says "oh no you don't sonny" and dumps in a heap of fuel and backs off the timing.

if that the case i might have bought a wrong fuel cut defender...

so when i buy 1 i should buy the one that is connecting to afm not map sensor..

am i right here?

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r34s DO have a boost pressure sensor (well 2 actually one for the stock gauge and one for the ecu). its bolted to the fire wall right next to the blow off valve . i said boost pressure sensor because it cant really be a Manifold Absolute Pressure sensor as it comes out of the J pipe .

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from my understand the R34 has a boost pressure sensor to check for excessive pressure

that is, so the ecu knows if you try and run more boost. it uses this sensor to check, and runs its r&r protection when it see's a certain level of pressure

unsure if it also runs its normal r&r via airflow meter, but it certainly does via map sensor pressure

so your Fuel cut device would need to intercept this one

there are 2, as the others have said, one is for the stock guage (it would have wires running to the dash area)

and one would be for the ECU

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the ecu's don't really rely on the map sensor. the fuel cut (known as rich and retard) is activated by the afm signal. once it gets to certain parts of the map the ecu says "oh no you don't sonny" and dumps in a heap of fuel and backs off the timing.

the r34 does indeed have a boost sensor it is located near the std bov. It is located where the ignitor pack is on a early r33.

Said map sensor cuts all fun if it goes out of range.

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