MAF sensor readings
01-20-2019, 03:51 PM
#1
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MAF sensor readings
Still cant start my car. I've got it hooked up to an ob2 scanner with live data and it says my MAF LB/S is only reading .01.
is that normal? Or what's the normal range for a 04 when cranking?
is that normal? Or what's the normal range for a 04 when cranking?
01-20-2019, 04:18 PM
#2
I don't know about cranking but at idle it should read 4.6-5 g/sec. which is 0.01lb/sec. lb/sec is kind of a weird measurement, if you're only reading to 2 decimals. Not nearly enough precision. Perhaps your reader is doing some kind of silly conversion from the car's native metric to stone age.
But anyway, the number checks out.
But anyway, the number checks out.
01-20-2019, 10:01 PM
#4
What am I doing here?
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Idle is ~900 RPM.
Cranking is ~250-300 RPM.
If you could actually measure MAF rate while cranking (and you might not because of the voltage sag due to the current draw of the starter), it should be 1/3 of normal.
Cranking is ~250-300 RPM.
If you could actually measure MAF rate while cranking (and you might not because of the voltage sag due to the current draw of the starter), it should be 1/3 of normal.
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