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silver_alpha6 silver_alpha6 is offline
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Default 3AD2 code? - 05-02-2020, 11:29 AM

Hello,

I have a 2017 A6 2.0 currently running on jb4 gp 6 map 2. Yesterday while driving, a CEL, 3AD2 popped up. A scan doesn't give any info. I search and it said something with fuel?

my fuel open loop at map 2 is 65.

Last edited by silver_alpha6; 05-02-2020 at 05:37 PM..
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George @ BMS's Avatar
George @ BMS George @ BMS is offline
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Default 05-05-2020, 04:15 PM

The 3AD2 fault is caused from the JB4 over fooling the ECU into thinking the rail pressure is lower than it should be so it can hold more pressure. It doesn't mean that the pressure is actually low but the ECU perceives it as this. IF it doesn't come often you can ignore it.There is also times where if the fuel level is very low in the tank it can cause this fault.


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