On a two-and-a-half hour drive, an orange Engine Light came on! Car was driving as normal with no noise!
My car has 143000 miles.
My car has a manual transmission.
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This light could indicate a number of faults, from minor issues like a broken gas cap, or a faulty mass airflow sensor to a much larger mechanical issue.
Supplemental commonplace reasons for a Check Engine Light are faulty emissions control part, faulty head gasket, dirty mass airflow sensor, a malfunction with the fuel injection system, damaged oxygen sensor, or defective spark plugs to name a few.
An orange or amber light is the least serious. If this light comes on and persists, it means that you should be able to keep driving as normal, but take your car to be looked at by a garage as soon as you can.
This is an advisory warning, which indicates an engine issue that affects emissions. In most cases, you`ll be able to continue your journey, but you should get your car examined as soon as possible.
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Since this fault has lasted after the engine was replaced it could be a oil pressure sensor, wiring harness fault, ECU fault, oil pump, oil strainer clogged, or low oil pressure.
To diagnose this issue properly you need a complete vehicle inspection to start from square one and identify the root cause of all this.
It sounds like you may have a dirty or faulty mass air flow sensor. The problem this can cause may also be compounded when the engine is cold due to the change in air density in cooler weather. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays information about fuel and air temperature, air speed entering the motor and many other things to the ECM which uses this to make adjustments to fuel supply to the motor. A dirty or faulty sensor can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This type of inconsistent fuel supply to the motor may cause a hesitation, loss of power, a jerking reaction, potentially a bit of black exhaust smoke and typically a strong smell of fuel when this sensor is malfunctioning. I would suggest having a professional from Your Mechanic come to your home to diagnose and inspect your vehicle.