Problem With Honda Cylinder Deactivation

Derrick Diagnostician Kentucky Posted   Latest  
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Driveability
2014 Honda Pilot EX 3.5L (J35Z4) 5-spd
P3400 — Cylinder Deactivation System Bank 1

checked all 3 solenoids independently with scan tool multiple times to rule out intermittent problem. used scantool to cycle trough modes with no problems. While doing this i watched the 2 associated oil pressure switch PIDs all seems to work well and respond accordingly. this vehicle only sets the code on road test then shuts down cylinder deactivation. It dosent matter whether it is in 3 cyl or 4 cyl mode when it sets the code and often works fine a few times before setting the code. Oil pressure doesn't seem to be a problem either. About to bust out the scope in the morning i got a couple ideas was wondering if anyone had any tips or common concerns for me . I dont see these alot and when i have its just been a solenoid. 

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Jeff Owner/Technician
Arizona
Jeff
 

TSB 1606H1 Sticky rocker arm pins.

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Derrick Diagnostician
Kentucky
Derrick
 

we use shopkey and i cant find the bulletin tried google as well all i get is this post oddly enough LOL. Also called a guy at honda he looked it up for me said it doesn't exist is it possible thats not the right number…thanks

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Jeff Owner/Technician
Arizona
Jeff
 

I don't have access to it at the moment, but it is the TSB for “rattling” from the valvetrain with a “flashing CEL”. However, neither of those concerns need be present to cause the miss that you are experiencing. Run the CD tests to verify function, but you will need to determine the misfiring cylinder and then inspect the locking pins on the deactivated rocker arms.

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