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P04DB Code

Messages
71
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7
Location
United States
Vehicle
Explorer ST
#1
I just installed the Fenfab v2 intake and charge pipe with HKS BOV. My car threw a P04DB code on the 3rd drive cycle. I'm sure I installed the intake lines correctly, but what might cause this? 1000004646.jpg
 

Messages
254
Reactions
73
Points
27
Location
Desert South West
Vehicle
2023 Explorer ST
#2
This connector appears to be unseated.

1710464641377.png
 

Messages
139
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115
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37
Location
Omaha, NE, USA
Vehicle
2020 Explorer ST
#4
Great eye Wafer! Tracked let us know if that fixes it…
 

OP
T
Messages
71
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18
Points
7
Location
United States
Vehicle
Explorer ST
Thread Starter #5
I just went out and re-inserted that connector and it appears to only go in that far before clicking on.

Could something with my evap purge valve be wrong with the intake and/or vacuum line install?
 

Messages
254
Reactions
73
Points
27
Location
Desert South West
Vehicle
2023 Explorer ST
#6
Was that sensor originally closer to the 90° fitting as in this picture?

Your code is a Crankcase Ventilation System Disconnected warning, I've read the sensor also has a hall effect pickup that detects when the Vent hose is moved.

1710518830824.png
 

OP
T
Messages
71
Reactions
18
Points
7
Location
United States
Vehicle
Explorer ST
Thread Starter #7
Ye
Was that sensor originally closer to the 90° fitting as in this picture?

Your code is a Crankcase Ventilation System Disconnected warning, I've read the sensor also has a hall effect pickup that detects when the Vent hose is moved.

View attachment 22126
Yeah it was definitely facing in that direction and is no longer. Maybe I need to trim my hose so that it can be repositioned that way as the hose is too long to allow it to go back to that direction?
 

Messages
254
Reactions
73
Points
27
Location
Desert South West
Vehicle
2023 Explorer ST
#8
Ye

Yeah it was definitely facing in that direction and is no longer. Maybe I need to trim my hose so that it can be repositioned that way as the hose is too long to allow it to go back to that direction?
Yes try to reposition it to face to same direction and at the approximate distance from the fitting, hopefully it will clear the trouble code.
 



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