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Old 04-07-2023, 03:12 PM   #1
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Originally Posted by blue62 View Post
You can check the MAF voltage with your Durametric
Should show 0.9 volts - 1.1 volts ...with key on engine off
1.2 volts - 1.5 volts engine running at an idle
Unfortunately I don’t have a durametric, I got my readings from a $30 OBD2 reader
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Old 04-07-2023, 03:28 PM   #2
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Originally Posted by DaveRad View Post
Unfortunately I don’t have a durametric, I got my readings from a $30 OBD2 reader
Does it show MAF voltage?
In your first post you stated that you got reading of 10kg/ph for a MAF reading.
So I assumed you were getting a MAF signal.
BUT JFP in PA is correct that you need to prove your MAF wiring is sound.
MAF voltage would be another way to check for a signal
or see if the MAF reading on your scanner changes with engine RPM.
I am just looking for an easy way to confirm that the ECU is getting a signal from the MAF.
If the ECU is getting a signal then the wiring is good.
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Old 04-07-2023, 03:45 PM   #3
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Originally Posted by blue62 View Post
Does it show MAF voltage?
In your first post you stated that you got reading of 10kg/ph for a MAF reading.
So I assumed you were getting a MAF signal.
BUT JFP in PA is correct that you need to prove your MAF wiring is sound.
MAF voltage would be another way to check for a signal
or see if the MAF reading on your scanner changes with engine RPM.
I am just looking for an easy way to confirm that the ECU is getting a signal from the MAF.
If the ECU is getting a signal then the wiring is good.
Unfortunately no, there’s no option to read MAF voltage. Could this possible be done with a multimeter?
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Old 04-07-2023, 03:44 PM   #4
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Originally Posted by DaveRad View Post
Unfortunately I don’t have a durametric, I got my readings from a $30 OBD2 reader
Do you have a multimeter? If so, check the continuity of the wiring from the MAF to the DME; this is exactly what the OBD II manual for your car says to do if you get P0102; and just a by-the-by, if the wiring is sound, the next step is to check the DME..........
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Old 04-07-2023, 03:46 PM   #5
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Originally Posted by JFP in PA View Post
Do you have a multimeter? If so, check the continuity of the wiring from the MAF to the DME; this is exactly what the OBD II manual for your car says to do if you get P0102
I do. Where would I find that connection?
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Old 04-07-2023, 04:00 PM   #6
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I do. Where would I find that connection?
OK, disconnect the harness at the MAF and at the DME. Pin #4 at the MAF end is the same as pin #47 at the DME, test it for continuity; pin #5 at the MAF end is the same as pin #17 at the DME end, test it for continuity. Then test both wires for a short to ground. If everything passes, it isn't the harness, if any wires fail, you need to find the break or ground and repair it.
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Last edited by JFP in PA; 04-07-2023 at 04:03 PM.
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