• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Explorer ST Forum and Explorer ST community dedicated to Explorer ST owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Explorer ST Forum today!


Code U2110 after Spark Plug and Filter Change

Sarge101st

Member
U.S. Army Veteran
Messages
56
Reactions
17
Points
7
Location
Global
Vehicle
2020 Ford Explorer ST
#1
Having a weird issue and I'm not sure if it's related to something specific. After swapping out all 6 spark plugs today to NGK 95605's and a new engine intake filter. After wrapping up and starting the vehicle I get a rough idle and rich fuel smell. Vehicle diagnostics show a U2110 error code. The only thing I can think that may be screwing it up when I removed the PCV hose to make space for the plugs on the passenger side, the hose ends broke. Even though the hose is back in place could the broken ends be causing this issue? Everything else looks perfect
 

OP
Sarge101st

Sarge101st

Member
U.S. Army Veteran
Messages
56
Reactions
17
Points
7
Location
Global
Vehicle
2020 Ford Explorer ST
Thread Starter #2
Delete thread. Issue solved.
 

powerboatr

Active Member
U.S. Navy Veteran
Messages
645
Reactions
400
Points
82
Location
Texas
Vehicle
2023 Explorer ST
#3
What was it?
We don't judge
Might help someone else
 

OP
Sarge101st

Sarge101st

Member
U.S. Army Veteran
Messages
56
Reactions
17
Points
7
Location
Global
Vehicle
2020 Ford Explorer ST
Thread Starter #4
What was it?
We don't judge
Might help someone else
I had left the plug to the throttle body off and forgot to reattach after the swap! Too simple
 

powerboatr

Active Member
U.S. Navy Veteran
Messages
645
Reactions
400
Points
82
Location
Texas
Vehicle
2023 Explorer ST
#5
Cool
Easy stuff gets us often
Thanks
 



Top