Question about Mitsubishi Galant
Dtc u1108 on a mitsubishi galan 4 cyl new battery install O2 working properly but catalyst show inc on readiness monitors help please
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Posted on Jan 02, 2017
Hello, and welcome to FixYa.
Please allow me to provide assistance to you.
The P-0401 code indicates an issue with the EGR valve. Normally, the most common problem is that the EGR valve sticks slightly, in the open position. To correct this condition, and to eliminate a potential for the engine to start stalling, when the valve finally sticks fully open, is to replace the EGR valve, the EGR transducer, and the EGR vacuum switching valve. This is a very common problem, and easy to rectify.
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Posted on Jan 25, 2009
Drive it some more. Has the battery been disconnected/replaced recently? The Inspection station should be able to print you out a drive cycle to get the monitors ready also.
Posted on Mar 10, 2009
DTC code P0421 is the O2 sensor that indicates a an issue with the Catalytic Converter. Replace the O2 sensor to the Catalytic Converter "the one after Converter" It's common for the sensor to fail and you can pick one up from Auto Zone and they will have the step by step instructions to replacing the O2 sensor.
DTC code P0302 Indicates a misfire on cylinder #2. Address the spark plug, spark plug wire, and injector. Look for any damages and try running some fuel injector cleaner through the fuel system to clean out the injectors.
Good luck and hope this helps.
Posted on Aug 11, 2009
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