Question about 2005 Honda Accord 2.4
What would be the first thing to fix
This is an indication of to lean a mixture on the bank one oxygen sensor. Warm the engine up and start looking for some sort of vacuum leak on the bank one cylinders. Possibly a vacuum hose or maybe an intake gasket. I have always used a non-flammable type of cleaner like brake cleaner and put a small straw on it so I can direct it at each of the intake ports and vacuum hoses in the related area and watch/listen for a misfire.
Posted on Mar 24, 2014
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Posted on Jan 02, 2017
SOURCE: check engine light on code
Hi, this code indicates your engine has a vacuum leak between the inlet hose airflow sensor and the engine valves. the leak could be a crack in the big inlet hose; a loose, cracked, or disconnected vacuum hose; or possibly a leak in the intake manifold gasket. First check all of the hoses and repair as necessary to eliminate any vacuum leaks. If those all look good, get some carb cleaner, start the engine, and spray the carb cleaner on the intake manifold gaskets. Assuming you have a 4-cylinder engine, the intake manifold gasket is behind the valve cover and spark plugs. If the engine speed changes while you are spraying the carb cleaner, you will need to replace the intake manifold gaskets. Please let me know if you have more questions, and thanks for using FixYa.
Posted on May 07, 2011
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