2000 Nissan Altima COMPUTER CODES

2000 NISSAN ALTIMA
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MYCUARTO
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Computer problem
2000 Nissan Altima 4 cyl Front Wheel Drive Automatic

my computerit has a self codes scanner and i'm getting codes 21 and 55 can you guys tell me what this 2 codes mean thks
Oct 30, 2008 at 10:00 AM
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ZACKMAN
  • ✓ASE Certified Mechanic
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Please go to Autozone, Kragen, Checker, or whichever you have around where you live. They can scan for free, I am much more familiar with the new codes, should start with P and 4 digit numbers.

21 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)

It is a 4-cylinder, single head. I am not certain why it says "Bank 2"

55 HO2S Heater Resistance (Bank 1, Sensor 3)
Oct 30, 2008 at 10:58 PM
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