GTIfanatic
Ready to race!
For the past 5k miles I've been fighting to find the cause of very random and inconsistent CEL P0101 (implausible MAF). The car has no symptoms of anything being actually wrong and I don't notice any difference from when the code randomly comes on to when I clear it. I replicate the condition that's causing the code to be thrown and it really seems to me to come on completely at random. Which obviously makes it just that much harder to diagnose what's actually causing the code to be thrown in the first place.
1. I started with the obvious things like cleaning the MAF sensor. Cleared the code and it would come back on at random within another 100 miles or so.
2. Then I tried a new air filter. Again cleared the code and came back on within another 10 miles.
3. Replaced MAF sensor with new oem one and checked all connections on my intake to make absolute sure there are now loose fittings or leaks of any kind.
4. I'm boosting to perfect levels at WOT and holding a perfect vacuum at idle.
1. I started with the obvious things like cleaning the MAF sensor. Cleared the code and it would come back on at random within another 100 miles or so.
2. Then I tried a new air filter. Again cleared the code and came back on within another 10 miles.
3. Replaced MAF sensor with new oem one and checked all connections on my intake to make absolute sure there are now loose fittings or leaks of any kind.
4. I'm boosting to perfect levels at WOT and holding a perfect vacuum at idle.