Nissan Tino running too rich

2001 NISSAN ALMERA
79,000 MILES • 4 CYL • FWD • MANUAL
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CHRIS WINK
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2001 Nissan Almera Tino Petrol running too rich, How do I adjust the mixture please?
Feb 15, 2011 at 9:09 AM
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RASMATAZ
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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.
Feb 15, 2011 at 2:01 PM