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P0103 code

Messages
197
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17
Location
oklahoma city
#1
I recently installed my 3" catless DP and loaded AP stage 3. I have put about 200 miles and then threw P0103 code,, Mass air flow voltage. Any ideas?
 


Messages
43
Likes
15
Location
Palestine
#2
Regardless if the voltage is high or low, you should check the sensor(s). Grab a volt meter and start poking around and refer to the owners manual or a repair manual for the approximate values of voltage/resistance. Make sure it isn't dirty as well and everything fits snug and there are no air leaks anywhere. That's the first place to start. It's best to have a good handheld so you can look at freeze frame data. Although not everyone has those since they are expensive, but they are awesome to have around in such a situation. I don't own a AP yet so I'm unaware of the info/detail they can give with diagnostic information.
 


Messages
43
Likes
15
Location
Palestine
#3
Sometimes these things can be small and simple as something not tight, dirty or up to a sensor malfunctioning and needs replacement.
 


OP
M
Messages
197
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17
Location
oklahoma city
Thread Starter #5
I will double check all connections and for cleanliness tonight, looks like an OEM MaF sensor runs about $120ish?
 


dyn085

2000 Post Club
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820
Location
Vancouver
#6
There should be no reason to replace it unless you somehow broke it and all it does is measure air temp.
 


Messages
62
Likes
5
Location
Crete
#8
I recently installed my 3" catless DP and loaded AP stage 3. I have put about 200 miles and then threw P0103 code,, Mass air flow voltage. Any ideas?
Interested if you resolved your code issue as I'll be doing a downpipe/exhaust change as well. Thanks!
 


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