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1992 Toyota Crown Repair Question


Topics covered: Engine, Fuel pressure, Sensor.
Mileage: 90,000 miles.

Asked on February 4, 2011

2JZ engine problems

My 2jz engine releases black smoke,and disallows acceleration. What is the cause of this?
Avatar Asked by Sharane

Answer

Replied on March 18, 2011

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.

Tiny Answered by rasmataz
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