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2005 Mitsubishi Endeavor XLS - Page 9 Questions & Answers
Crank no start/fuel 2004 Mitsubishi Lancer
Well, you need 3 things for an engine to run; air, fuel and spark. Air from the air ducting through the air filter, the fuel from the pump usually in tank to fuel filters {pressurized} into the injectors for fuel. Spark is a bit trickier; you have a cam sensor, crank sensor, coil packs, spark plugs. There are more components in each of these 3 classes so unless you are familiar; it's best to take it to a mechanic.
Why wont the check engine light go away?
These may be few possible reasons why the check engine light won't go away after replacing the O2 sensor in your 2000 Mitsubishi Eclipse V6
·The wrong O2 sensor was replaced or the O2 sensor is properly connected to the wiring harness(any signs of damage or corrosion).
·Sometimes, issues with the engine, such as misfires, vacuum leaks, or problems with the fuel system, can trigger the O2 sensor to report a problem. Ensure your engine is running smoothly and there are no other issues that could affect air/fuel ratios.
·The new O2 sensor is defective. If the O2 sensor is working properly, then the check engine light could be due to another problem with the exhaust system, such as a leak or a problem with the catalytic converter.
·Problem with the wiring to the O2 sensor. If the wiring to the O2 sensor is damaged or corroded, it can cause the sensor to malfunction and trigger the check engine light. To diagnose the exact cause of the problem, you will need to have the car scanned by a qualified mechanic. The mechanic will be able to read the trouble codes from the computer and use that information to pinpoint the problem.
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