How do I fix the code P3401 on my 2006 Dodge 1500 2WD Hemi? Where is solenoid located?
The solenoid is under the intake manifold which has to be removed
you will see 4 solenoids, the one you have to replace is the code for cylinder 1 check to see if the short harness is bad before replacing the sensor
The short harness looks like picture below and the wire is known for going bad
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