2004 Mazda RX8 Repair Question
2004 Mazda RX8 Runs rich
2004 Mazda RX8 Two Wheel Drive Manual
I have a 2004 RX8 rotary 1.4L It runs very rich almost enough to make your eyes water. The only code is low efficency on cat. I have had it checked out and was told the cat is not bad. Any ideas ? I have been running super in it for 3 months it also gets poor gas milage even driving it gently. Please any help would be welcomed. Thank you.
Probable causes of an engine running rich are as follows:
1.Fuel pressure not within specs.Can be cause by restricted fuel return line or defective fuel pressure regulator.
2.Defective Oxygen Sensors.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
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