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1994 2.0 20v 850 volvo maf sensor voltages (Read 23,715 times)

bangshout Freshman Member Offline Posts: 23 south yorkshire United Kingdom Gender:	1994 2.0 20v 850 volvo maf sensor voltages May 16^th, 2011 at 2:03pm Iam working through the various sensors on my trusty 1994 850 2.0 20v Volvo, with my newly acquired oscilloscope, (a 40mhz Hameg) not a pico but there we go. Can anyone give me the voltages I can expect from the cars maf sensor,and the pin nos for the signal or maybe even a waveform cheers Ian
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Mick

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Re: 1994 2.0 20v 850 volvo maf sensor voltages
Reply #1 - May 16^th, 2011 at 4:56pm

Ian

I dont have a wiring diagram in front of me but if you back probe the wires in the connector without puncturing the wires you will get one with about 1 volt at idle and if you snap throttle the trace should rise to at least 4 volts peek.

When you have taken your wave post it here so we can see what you have got.

Mick

Mick

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drdiesel1 Super Nerd Picogroup Offline Posts: 1,243 Nevada USA Nevada USA Gender:	Re: 1994 2.0 20v 850 volvo maf sensor voltages Reply #2 - May 17^th, 2011 at 1:40am IIRC it's 4.8 to 4.6 volts peak with 4.5V as the minimum output on a WOT test, with an at idle reading from .8 to 1.2 volts
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