Maf sensor and egr reading

[mitzi1]

while doing a quick look at the ecu readings, I noticed the maf sensor reading was .44 gm/sec with ignition on and engine off. Is this normal. I as expecting a 0 reading as engine was off and no air was flowing through the intake. Any information appreciated. Also at idle egr reading is 70%. Seems high. Is this normal please.
Cheers

[mitzi1]

Hi fellas can anyone tell me the correct egr percentage for 4N15 motor at idle please.
Cheers

[L200Shogun]

EGR valve reading? It will vary with conditions

[mitzi1]

The reading at idle please mate. it will be a percentage reading.

[NowForThe5th]

L200Shogun is correct. The EGR system is quite complex and varies according to inputs from a number of different sensors. The outputs from these sensors can be tested to determine whether the ECU is getting the correct information. They're detailed in the online manual.

[mitzi1]

Can anyone tell me the egr setting at idle for the 4N15 motor. Mine is siting at 70% warm. Seems alot.

[L200Shogun]

It varies. On a really cold day it will be zero. Just add a resister and keep it closed