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1999 Forester S
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28 Posts
Discussion Starter #1
what are the peramiters for the MAF. i had mine in the shop and with engine off it was at 0mv and 6.3mv at idle. the tech couldnt find the readings on alldata and i wonder if any of you would know.

99 foz if it matters
 

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Registered
1999 Forester S
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28 Posts
Discussion Starter #3
snap on scan meter from the obd port. he was seein if everything was sending good numbers like the maf o2s injector pulses. he was checking everything out to try and help me find out whats wrong with my car
 

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1998 Forester
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39 Posts
snap on scan meter from the obd port. he was seein if everything was sending good numbers like the maf o2s injector pulses. he was checking everything out to try and help me find out whats wrong with my car
At idle (850 RPM) the MAF should be 0.7 to 1 V. The O2 front should vary from 0 to .75 V and the rear should vary from 0 to .8 V but more slowy, as seen on a scan tool.
 

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BMW 11/05/1994
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1 Posts
My check engine light kept coming up 02 sensor and i put at least 4 sensors in it and it still didnt fix it. it turned out to be the computer.
 
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