CEL - P2418

[JoeyRig]

Here I am back after a long hiatus. I took my 2022 Ranger on some pretty gnarly off road trails, then drove home and did an oil change. Upon starting her up I got hit with this on my Ford Pass App.

I hooked up my Laptop and ForScan says its code P2418:

While doing my oil change I saw that this massive connector had been broken and somewhat ripped out during my off roading adventures. The connector was a little disconnected and the loom was torn enough that about and inch or two of wires was exposed.

Similarly, one of my fuel lines was pretty ben, but not kinked. In the picture it was the lower line.

Clearing the code on ForScan and driving around for a bit had the code come right back. I was hoping someone here good offer some advice or help, as the Ranger is my daily driver. Is it “safe” to drive with this code for now? Also any ideas or fixes to get her back to being 100%? Any help would be GREATLY appreciated.

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[RangerBill]

Look carefully at that connector and wiring harness near it. Most likely a broken wire causing the DTC. Did you push the connector fully back together after finding it partially pulled apart?

 

[RangerBill]

Here is information from the shop manual. The code appears to refer to the vapor blocking valve or wiring (first valve in the attached picture). There are 2 connectors that could be the ones that you show in your pictures. The white-green and green-red (or green, as the green-red wire changes colors) wires would be suspect.

 

[JoeyRig]

Look carefully at that connector and wiring harness near it. Most likely a broken wire causing the DTC. Did you push the connector fully back together after finding it partially pulled apart?

It was barely pulled apart, so I just clicked in back to place. The loom tore open on the front side, closer to the engine.

Thank you for the advice!!

 

[RangerBill]

It was barely pulled apart, so I just clicked in back to place. The loom tore open on the front side, closer to the engine.

Thank you for the advice!!

Did pushing the connector back together solve the issue?

 

[JoeyRig]

Here is information from the shop manual. The code appears to refer to the vapor blocking valve or wiring (first valve in the attached picture). There are 2 connectors that could be the ones that you show in your pictures. The white-green and green-red (or green, as the green-red wire changes colors) wires would be suspect.

Thabk you!!!! Ill take a look at the wires themselves, hopefully an easy fix.

Did pushing the connector back together solve the issue?

Unfortunatley not. Code cleared via ForScan and it came right back.

 

[Stevedbvik1]

This area is really vulnerable when off roading as none of the skid plates protect it. Maybe someone has or can come up with an idea for some type of protection. I know @Lateknightucd had a similar issue with his connector getting broken. Not sure if he had the same specific codes as you but he did have issues.

 

[airline tech]

For Ref: C408 is the Left Connector in your Pic
If you follow that back - you will see the harness split and (one) connector that routes up to the top of the fuel tank - That is C410

Inspect for damaged wires - if no visible damage noted- then get a meter.
Disconnect C408

Key-On; Check for
Power at Pin#13 (Engine Side) if 12 Volts
Key-Off
Then reconnect and move to C410 (Disconnect)

Key-On
Check for Power at Pin#14 - Ensure 12 Volts (Towards C408)

Key-Off

Now let's check the Ground (harness between C408 & C410)
Disconnect Both C408 & C410 and Ohm the Wires
Power & Ground
C408 (Fuel Tank Side) Jumper Pins 13 & 34
C410 (Towards C408) - Measure (Ohms) scale between Pins 13 & 14 should read (.001)


If above checks good - then we need to check (PCM-Controlled Grd) on C408 (Engine Side)

To test C408 (Engine Side) - you have 2 options
Disconnect the PCM Connector C175B and Ohm back to C408 Pin#34
Via C175B - Jumper Pin# 3 to Body Ground
and
At C408 - Measure (Ohms) Pin#34 to Body Ground should read (.005 or less) depending on how good the body ground is that you are grounding to.
or
Get a Scan Tool and command the Valve to Close, this will apply the Ground
So, meter C408 (Engine Side) Pin#13 to Pin#34 - With the Valve (Commanded) Closed
You should see 12 Volts.

The Evap Vapor Valve itself (is located on top of the fuel tank) and is replaced as an assembly with the fuel tubes that run on top of the tank.
The valve is normally open and when the PCM applies the Ground it closes.

You may also ensure that the (Evap) lines are not cracked and that they are still connected (at the fuel tank connections) and no damage at those connectors.

 

[airline tech]

One other possible (by your post) Loom tore apart on the (engine side)
Check to ensure - that all the wires are seated into that connector, some of the wires may have been pulled out (grab each wire and give it a slight tug) ensure it is locked in place.

 

[JoeyRig]

For Ref: C408 is the Left Connector in your Pic
If you follow that back - you will see the harness split and (one) connector that routes up to the top of the fuel tank - That is C410

Inspect for damaged wires - if no visible damage noted- then get a meter.
Disconnect C408

Key-On; Check for
Power at Pin#13 (Engine Side) if 12 Volts
Key-Off
Then reconnect and move to C410 (Disconnect)

Key-On
Check for Power at Pin#14 - Ensure 12 Volts (Towards C408)

Key-Off

Now let's check the Ground (harness between C408 & C410)
Disconnect Both C408 & C410 and Ohm the Wires
Power & Ground
C408 (Fuel Tank Side) Jumper Pins 13 & 34
C410 (Towards C408) - Measure (Ohms) scale between Pins 13 & 14 should read (.001)


If above checks good - then we need to check (PCM-Controlled Grd) on C408 (Engine Side)

To test C408 (Engine Side) - you have 2 options
Disconnect the PCM Connector C175B and Ohm back to C408 Pin#34
Via C175B - Jumper Pin# 3 to Body Ground
and
At C408 - Measure (Ohms) Pin#34 to Body Ground should read (.005 or less) depending on how good the body ground is that you are grounding to.
or
Get a Scan Tool and command the Valve to Close, this will apply the Ground
So, meter C408 (Engine Side) Pin#13 to Pin#34 - With the Valve (Commanded) Closed
You should see 12 Volts.

The Evap Vapor Valve itself (is located on top of the fuel tank) and is replaced as an assembly with the fuel tubes that run on top of the tank.
The valve is normally open and when the PCM applies the Ground it closes.

You may also ensure that the (Evap) lines are not cracked and that they are still connected (at the fuel tank connections) and no damage at those connectors.

Thank you very much for the help! I am currently under the truck, and finally managed to get C408 disconnected. When you're talking about numbered pins, am I just counting them or is there a diagram saying which is which? Again thank you, I really appreciate it

 

[airline tech]

Thank you very much for the help! I am currently under the truck, and finally managed to get C408 disconnected. When you're talking about numbered pins, am I just counting them or is there a diagram saying which is which? Again thank you, I really appreciate it

Post #3 has the Pinouts for the 2 connectors

 

[JoeyRig]

Post #3 has the Pinouts for the 2 connectors

Not sure how I missed that, thank you!

 

[JoeyRig]

Post #3 has the Pinouts for the 2 connectors

Also, I am not very well versed at all with electronics or wiring. When I am on your step 1 seeing if pin 13 has power, what am I using as a ground to measure it?

 

[airline tech]

Also, I am not very well versed at all with electronics or wiring. When I am on your step 1 seeing if pin 13 has power, what am I using as a ground to measure it?

With Key - (ON)
Red lead to Pin 13 & Black Lead to Body Ground - should read 12 Volts

 

[JoeyRig]

@airline tech and @RangerBill yall are lifesavers. After finding that pin 13 was at a steady 12 I looked closer at the connector and sure enough that wire had been pulled and the pin was shorter than the rest. I pushed it back in, taped it tight to the closes wires and repaired the loom. After a 15ish minute cruise the light has not returned. Thank you both!

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