Question about 2001 Nissan Pathfinder
I took my suv to do emmissions and it failed it came up with 3 codes, p0420,p0455,p0740
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Stereo unlock
Check your glovebox and inside your console for a sticker with a series of numbers this should be your code enter it by using the channel buttons on the radio or you can call the dealer with your VIN # and they can give you the code
Posted on Jul 01, 2009
1995 Nissan Pathfinder Car Stereo Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Pink
Car Radio Switched 12V+ Wire: Blue
Car Radio Ground Wire: Gray
Car Radio Illumination Wire: Red/Blue
Car Radio Dimmer Wire: Red/Yellow
Car Radio Antenna Trigger: N/A
Car Radio Amp Trigger Wire: N/A
Front Speakers Size: 5′ x 7′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Pink
Left Front Speaker Wire (-): Blue
Right Front Speaker Wire (+): White
Right Front Speaker Wire (-): Black
Rear Speakers Size: 5′ x 7′
Rear Speakers Location: Roof Mount
Left Rear Speaker Wire (+): Light Green
Left Rear Speaker Wire (-): Purple
Right Rear Speaker Wire (+): Blue
Right Rear Speaker Wire (-): Pink
Posted on Nov 20, 2009
P0420 is Catalyst System Efficiency Below Threshold - Bank 1
P0456 is EVAP Control System Very Small Leak (Negative Pressure Check)
Posted on Nov 22, 2009
A p0420 code indicates a Catalytic System efficiency failure, Bank 1.
Basically, the computer is seeing reduced efficiency of the catalytic converter or one of it's components (such as an 02 sensor)
There may be a few root causes, such as a faulty oxygen sensor, faulty coolant temperature sensor, faulty converter, Large exhaust leak, or retarded (slow) timing.
Posted on Nov 30, 2009
p0720-- auto. trans. vehicle speed sensor (revolution sensor)
p1574--automatic speed control device/vehicle speed sensor
p0420--two way catalyst system bank 1
Posted on Apr 03, 2010
Tips for a great answer:
Feb 05, 2013 | Nissan Altima Cars & Trucks
Catalyst Efficiency Below Normal (Bank 1)
Air leaks at the exhaust manifold or in the exhaust pipes.Catalytic converter is damaged, contaminated or has failed.Front HO2S or rear HO2S is contaminated with fuel or moisture.Front HO2S and/or the rear HO2S is loose in the mounting hole.Front HO2S older (aged) than the rear HO2S (HO2S is lazy).
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