so is my maf or my wiring bad? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

1slowS13 · 06-09-2008, 07:15 PM

mind you, that i am on dcv20 setting on my multimeter.

ive been trying to figure out my hesitation and cutting out problem, so i decided to go over my engine with a multimeter.

with a fully warmed up engine, the 4th pin on the maf harness reads .25 when the key is in on position, and reads .80 when the car is idling. ive read that it needs to be under .2 in on, and 1.0-1.4 on idle. what gives?

im not sure if it matters, but the 3rd pin read .05, which i believe is ground, 2nd pin is 12.60, which i believe is the power wire, and 1st pin is n/a.

i just checked the pin out from ecu, its the same. so i am guessing there is continuity and my wiring is good.

although when the harness is plugged into the sensor, with the vehicle running, the voltage fluctuates as high as 1.1 to as low as .40 while JUST idling. i have 3 different mafs, i tried quickly plugging them in with the vehicle running, they all fluctuate. wtf?

06-09-2008, 07:15 PM	#1
1slowS13 Zilvia Junkie Join Date: Jan 2008 Location: Las Vegas, NV Age: 35 Posts: 466 Trader Rating: (6) Feedback Score: 6 reviews	so is my maf or my wiring bad? mind you, that i am on dcv20 setting on my multimeter. ive been trying to figure out my hesitation and cutting out problem, so i decided to go over my engine with a multimeter. with a fully warmed up engine, the 4th pin on the maf harness reads .25 when the key is in on position, and reads .80 when the car is idling. ive read that it needs to be under .2 in on, and 1.0-1.4 on idle. what gives? im not sure if it matters, but the 3rd pin read .05, which i believe is ground, 2nd pin is 12.60, which i believe is the power wire, and 1st pin is n/a. i just checked the pin out from ecu, its the same. so i am guessing there is continuity and my wiring is good. although when the harness is plugged into the sensor, with the vehicle running, the voltage fluctuates as high as 1.1 to as low as .40 while JUST idling. i have 3 different mafs, i tried quickly plugging them in with the vehicle running, they all fluctuate. wtf? Last edited by 1slowS13; 06-09-2008 at 07:55 PM..