Have You Had To Replace a Faulty MAF?
 

Just wondering. I have been reading up that the failure rate on our kind of MAF (commonly used by toyotas and nissans) is quite high. I have been working with Kane and getting my car tuned, and we are suspecting a bad maf as my trims have been getting weird, and my car is throwing a P0101 fault (we haven't really done much tuning, just some basics so its not the tune obviously).

Anyway, just wondering if people have experienced issues with the MAF? I know we commonly point to a MAF as a source of trouble for those who have had idling issues and such, but exactly how many of you had to drop a dime on a new one?

Mine is going strong, as best as I know...

my dealership stocks 4 of the MAF's...

Had to replace mine.
AFR's would bottom out intermittently cruising at highway speed.

Interesting. Mine isn't hitting the AFRs yet, but my trims are pulling about 15% fuel on acceleration around 25-30% load. Then sometimes it teeters the other way and adds just as much fuel.

Mine was all over the place I think it had a broken wire. I swapped it and the new one worked great. That's before I started tuning.

I just replaced mine again for the heck of it to see if the two put out different top end voltages. I haven't tested it yet, but my fuel trims are the same after about 100 miles of driving.

+1 on the faulty maf.

Just replaced my maf and wow .... not sure why the original all of a sudden went kaput.

Could occasional idle dipping at stop lights possibly be MAF related? I wish had an AP or a device to check my AFRs, got this feeling all my mods needs a tune to stabilize the fuel trims and idle or the MAF is faulty...

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I'm bringing this back from the dead instead of creating a new thread:

I have the same. +10-15 across the rev range on small throttle openings, increasing to 20 under moderate load. Then I'll see it swing all the way back to zero on both LT and ST trims for 5-10 minutes.

CEL light is on: P050A (Cold start idle air control system performance) and P0506 (idle control RPM lower than expected). 90k miles on a 2008. I'll report back once I swap in the new sensor.