![]() Evaporative Emission Control System Leak Detected Another possibility is an intake leak.Ĭode: P 0171 4. This is another common problem with high mileage Mazda3 and Mazda 6 models.ĭon’t use anything else than MAF cleaner fluid for cleaning. This is usually caused by a dirty MAF sensor, which gives false air flow readings. Your engine is likely running lean if you are experiencing rough idle, lack of power, or hesitation on accelerations. Common on Mazda 3 where check engine light is on, and code P0126 is present. The result is an engine that is not able to reach operating temperature. A thermostat stuck in an open position is a probable cause in this case. ![]() ThermostatĪnother common problem is a check engine light caused by low coolant temperature. Mazda CX-7 had a lot of problems with stretched timing chains. Another possibility is a faulty solenoid. In most cases, this is caused by a dirty VVT filter screen. Timing ChainĮngines with a variable valve timing (VVT) sometimes suffer from over retarded timing. Every situation is different, so you should read the codes to determine why the CEL light is on in your Mazda. Here are some common problems that trigger Mazda’s check engine light to come on. Research each code and remember that many issues can trigger one code.Īuto parts stores such as Advance Auto Parts, Autozone, PepBoys, and O’Reilly may read your Mazda check engine codes free of charge. The fault code is the starting point for diagnosing the check engine light on a Mazda. Select READ FAULT CODES from the main menu.Turn on the ignition but do not start the engine.Locate the OBD-II port under the dashboard.Reading the Diagnostic Trouble Codes (DTCs) with an OBD-II scanner would be the next step to finding the fault codes that triggered the check engine light to stay on. Once the gas cap is tightened, it can take up to three days for the light to reset on its own, as long as there are no other fault codes. ![]() Sometimes there are no symptoms, and the solution may be as simple as tightening a loose gas cap. Check engine light flashes, and the traction control light comes on.The car won’t respond to the accelerator pedal.As you can imagine, this is often accompanied by a loss of power due to exhaust blockage.What you may notice when your Mazda check engine light comes on: This can often be heard, as smaller ceramic pieces will bounce around inside the converter housing. Finally, physical damage can sometimes occur if a large rock or other object hits Mazda Protege catalytic converter, resulting in a damaged ceramic core. ![]() If you are replacing your Mazda Protege catalytic converter due to any of the above circumstances, it is a good idea to also replace your oxygen sensor, since it plays a vital role in the air/fuel mixture ratio and may have also been damaged due to the same adverse conditions. Other common symptoms include: a lack of power, rough engine idle, or stalling. Another common sign of catalytic converter failure is the infamous "rotten egg" smell. It is common to see your Mazda Protege catalytic converter glowing orange/red when this condition is present. So how do you know if your Mazda Protege catalytic converter is on its way out? If your Mazda Protege engine seems to be losing power or your temperature gauge reads a little high, one possible culprit could be that a rich condition is feeding excessive unburned fuel into the catalytic converter, which can overheat it as well as damage it. Aftermarket high-flow Mazda Protege catalytic converters are therefore a much better (and more responsible) choice for those seeking to upgrade their exhaust systems or replace a faulty converter. Modern catalytic converters are much less restrictive than in days past, so much so that the antiquated (and illegal) method of "gutting" the converters of their internal structures has been deemed almost pointless on newer cars, as the performance gains are minimal, if any.
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