FAILED SMOG TEST PLEASE HELP!

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jedbimcdb
Posts: 2
Joined: Tue Aug 02, 2011 4:01 pm
Car: Nissan Altima 2003 4 cyl

FAILED SMOG TEST PLEASE HELP!

Postby jedbimcdb » Tue Aug 02, 2011 4:34 pm

Here are my results

FAULT CODES
P0725 and P0335

%CO2
14.4 AT 15 MPH
14.5 AT 25 MPH

%O2
0.2 AT 15 MPH
0.2 AT 25 MPH

HC (PPM)
MAX 55 / MEAS 50 AT 15 MPH
MAX 39 / MEAS 53 AT 25 MPH

CO (%)
MAX 0.50 / MEAS 0.53 AT 15 MPH
MAX 0.48 / MEAS 0.53 AT 25 MPH

NO (PPM)
MAX 437 / MEAS 2059 AT 15 MPH
MAX 724 / MEAS 1964 AT 25 MPH

Please tell me possible solutions and estimates


Buckshot
Posts: 48
Joined: Thu Dec 09, 2010 9:09 pm

Re: FAILED SMOG TEST PLEASE HELP!

Postby Buckshot » Tue Aug 02, 2011 6:02 pm

you need a crank sensor and that will take care of your problem. probably have long crank time also.it is located in the back of engine on left side by the motor mount would suggest original equipment if possibly.make sure you look in the connector for oil and clean it out if possible.parts should be about 70 dollars and if you have a auto zone have them clear like and drive it about 1/2 hr on highway should take care of it...

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the converted
Posts: 3431
Joined: Wed Feb 21, 2007 7:14 am
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Re: FAILED SMOG TEST PLEASE HELP!

Postby the converted » Tue Aug 02, 2011 6:27 pm

What he said. I am a little concerned with how high the NOX numbers are, but that could be a side effect of the lack of a working crank position sensor.


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