This car was running great. Now, all of the sudden, it's missing in lower gear and blowing a lot of black smoke. How do I fix it?
Jan 9, 2011 at 8:35 AM
1989 Toyota Corolla
NKEARNS
- MEMBER
- 1 POST
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Probable causes of an engine running rich are as follows:
1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
Mar 14, 2011 at 5:51 PM
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