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Discussion Starter · #1 ·
Yesterday my wife left the lights on and the battery died on my truck. (aux lights) anyway, we got a jump from the neighbor and the SES light comes on. I tried to reset 3 times and the MAF sensor keeps coming up. (0102) How many MAF sensors are there? I wonder that my bozo neighbor may have unplugged something or fooled with something. I only know of one sensor at the intake. The truck is all stock and has been for about 2 years now. Also is the MAF covered under the powertrain warranty?
 

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1BadTitan said:
Yesterday my wife left the lights on and the battery died on my truck. (aux lights) anyway, we got a jump from the neighbor and the SES light comes on. I tried to reset 3 times and the MAF sensor keeps coming up. (0102) How many MAF sensors are there? I wonder that my bozo neighbor may have unplugged something or fooled with something. I only know of one sensor at the intake. The truck is all stock and has been for about 2 years now. Also is the MAF covered under the powertrain warranty?
There's only one MAF sensor and it's covered under the emissions warranty of 3/36. But a dead battery won't kill a MAF sensor.
 

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Discussion Starter · #3 ·
Could it have bought the code back from the beyond, to haunt me? That would explain the s#itty gas milage.
 

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Discussion Starter · #4 ·
If there is only one sensor why is there 3 different codes for it? Is this a dealer only part ?
 

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The MAF sensor, if you're sure that's the code you got, is located on the intake as you probably know. It's the only one. No idea what ther other codes are for.
Try cleaning the sensor using MAF sensor cleaner than resetting it?
 

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Discussion Starter · #9 ·
it says check the voltage at the plug, whats it supposed to be and which pins do I test at?
 

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That I couldn't tell ya. But aparently, the code you're getting is claiming it's getting nothing from the sensor whereas the other 2 codes are claiming to high or low voltage. Make sure the connector is on tight and clean it. Otherwise it may be the sensor is actually bad...but I don't think so.
 

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Discussion Starter · #11 ·
Man, life just gets worse here. I just called Autozone and they said the MAF is special order and its $225
 

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Was the ignition on when the jumper cables were hooked up? If so, then it's possible the spike caused by connecting the cables fried it. When you connect the cables, always connect the ground cable last to reduce sparking and prevent a power spike running through the electronics.
 

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When my new battery was first installed, the 4WD light was on on the truck and the little truck icon in the info. center wasn't there. I turned the truck off, let sit for about 5 min. and restarted and everything was normal. Not sure if some capacitor or something discharged and need to charge up before the 4WD system worked properly?
 

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Discussion Starter · #14 ·
No, she had the keys out, because when the key is turned the doors will lock. She didnt want to get locked out of the truck when the battery charged.
 

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I've gone through 4 MAF sensors in a year. One month my dealership sold or warrantied 21 MAF sensors for the Titan. This is not a cheap part to be replacing all the time. Luckily, mine is still under warranty. I forget the codes I was throwing, but obviously there has been some sort of problem with production of these things.
 

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Rubbing Alcohol can be used to clean the sensor...worth a shot.

I know you said it was stock...but by chance do you have a K&N Filter or something like that...

Oiled Intakes eat MAFs for breakfast lunch and dinner.
 

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I've never heard of any MAF sensor problems on our trucks. Modded trucks are going to be more prone to trouble but even then I think cleaning them clears the trouble code(s). Maybe that's just been my experience but I can't remember people complaining about having to have them replaced once let alone over and over again. Anyone else hear of this?
 

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I can see issues being caused by K&N or other oiled filters for sure, the oil leaves a light film on the MAF sensor that prevents an accurate reading. Especially so for over-oiled filters.

On a side note, those of you with K&N panel filters PLEASE check the fitment of the filter to make sure all sides fit correctly. I installed a drop-in K&N on a previous vehicle and didn't notice the far side wasn't seated correctly due to poor fit, this ended up leaving a coating of dust throughout the intake tubes because of the small gap between the seal and filter housing, so I can only imagine what the engine was trying to digest.
 
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