MAF Sensor Voltage reading odd

[ENDEVR]

I know these aren’t the same car obviously but I believe most cars should be similar to how the MAF works and I should be showing similar numbers but mine are all running high. I have around 2v at idle and free revving in the datalog I posted put me above 5 and even sometimes 6v at 3k rpm and looking at a previous datalog from when the car was healthy shows normal MAF numbers (1v at idle and increasing properly)

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[Pistol_91]

I know these aren’t the same car obviously but I believe most cars should be similar to how the MAF works and I should be showing similar numbers but mine are all running high. I have around 2v at idle and free revving in the datalog I posted put me above 5 and even sometimes 6v at 3k rpm and looking at a previous datalog from when the car was healthy shows normal MAF numbers (1v at idle and increasing properly)

Are you implying here that your tuner messed around with your MAF voltage settings, or are you saying your MAF is receiving too many volts?
I never pay any attention to MAF volts because that's not something you even adjust for MAF tuning, but this is a stock table from a 2020. In your log you can see it sits at around .9 lbs/min which would be just over a half of volt to 3/4 of a volt according to this 2020 table. But you say you're seeing 2 volts at idle? Where do you see that? Are you referring to the 2 hertz its logging in that log? I'm not super familiar with logging with this type of datalogger but to me, that says hertz, not volts. Either way you said theres a difference between this log and an old one, so something has changed. If you're getting over voltage, then there may be a grounding issue going on somewhere.

 

[ENDEVR]

Are you implying here that your tuner messed around with your MAF voltage settings, or are you saying your MAF is receiving too many volts?
I never pay any attention to MAF volts because that's not something you even adjust for MAF tuning, but this is a stock table from a 2020. In your log you can see it sits at around .9 lbs/min which would be just over a half of volt to 3/4 of a volt according to this 2020 table. But you say you're seeing 2 volts at idle? Where do you see that? Are you referring to the 2 hertz its logging in that log? I'm not super familiar with logging with this type of datalogger but to me, that says hertz, not volts. Either way you said theres a difference between this log and an old one, so something has changed. If you're getting over voltage, then there may be a grounding issue going on somewhere.

Not at all. I ran their tune for years and never had issues. The issues are definitely not with the tuner, especially since it’s back on stock tune. Im going off what the log says, I’m another thread on here it said this info on the datalog is MAF hz (I thought that this value and the voltage were interchangeable) but is the value that the MAF is sending. Maybe it has something to do with my issue, maybe it doesn’t, I’m just trying to follow every lead I can to figure out what’s up with the car. It is definitely different from previous data logs though. Is there any sort of reference showing where the grounds are in the car so I can check them?

 

[Pistol_91]

Not at all. I ran their tune for years and never had issues. The issues are definitely not with the tuner, especially since it’s back on stock tune. Im going off what the log says, I’m another thread on here it said this info on the datalog is MAF hz (I thought that this value and the voltage were interchangeable) but is the value that the MAF is sending. Maybe it has something to do with my issue, maybe it doesn’t, I’m just trying to follow every lead I can to figure out what’s up with the car. It is definitely different from previous data logs though. Is there any sort of reference showing where the grounds are in the car so I can check them?

Got cha got cha. I believe there is a wiring diagram out there. Idk exactly where to find it but you could probably Google it.

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