FI and Map Sensor Fault

gammamotors · 08-08-2015, 02:50 PM

Quote:

Originally Posted by phunk

I just unplugged the MAP sensor and started the car. With engine idle and reving I do not get a DTC. I will leave it unplugged when I drive it later and see what happens.

I assume the MAP sensor is used for either the VVEL system, or for some trivial thing like EVAP or emissions related.

actually there is two map sensors on our cars ,if memory serves me right one is in the brake booster area and and the other one is on the back of the upper intake manifold . and there is a reason why Nissan did that . Nissan claims that under certain conditions of (rpm,load,Maf voltage and speed the intake vales lift and duration what control the rpm ,basically the throttle butter fly are stationary and and the rpm of the engine is controlled via the valve left and duration of the intake valves .

Majed

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