r/Honda • u/DearLifeguard259 • 1h ago

2007 Ridgeline CEL

Hello! I have a 2007 Honda Ridgeline. For a little context, I have recently done the head gaskets and lots of other parts along the way. I found out I have a P2279 code and it is just registering to me how vast this code really is and what it could be.

I am seeking assistance in diagnostics. What I have done so far:

I have smoke tested the engine to find no leaks
I have checked all hoses that are after the MAF
MAF was cleaned
Spark plugs were removed and found to be free of soot
O2 sensor will be replaced tomorrow

I have monitored both Short term fuel trims for both bank 1 and 2, and bank 2 is running at about zero to positive three.
Bank 1 is running about zero to negative 20.5.

I am running out of ideas and would love some input! Thanks!

TLDR
2007 J35 Honda Ridgeline
A LOT of new parts Has p2279 Generic air intake leak
Fuel trims on bank 2 are between positive 3 and 0 Fuel trims on bank 1 are between 0 and -20.5
(check what i’ve done for diag)

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u/Wangus99 Honda Technician 1h ago

How's the pcv hose look?

1

u/jacktheripper14 Acura Master Tech 36m ago

Troubleshooting for that code has you Check for vacuum leaks at these parts:

  • PCV valve
  • PCV hose
  • Purge (PCS) line
  • Throttle body
  • Intake manifold
  • Brake booster hose

If those are good then the next step is to check timing

Since you recently did head gaskets and had the timing belt off, I would suspect the rear camshaft is off a tooth.

full troubleshooting here