i've been getting the ecu code 0705 and 0309 for a month now and it keeps coming back. I checked the sticky and it lists a bunch of stuff for 0705 and there isn't a 0309 code. Where should i even start to fix the problem with the EVAP? Does anyome know what the other code means??

 

anyone???????

 

I am having the same problem and have the same question.

No info on 0309??

I can clear the codes and they return a few days later.

Funny?? This CEL problem began a week after the NJ State 2 year inspection check at DMV where they hooked up their computer to my cars ECU, (car passed no problem and no codes were logged in the ECU as per their report page). They also removed and pressure tested the gas cap, and it was fine.

The day the problem began, I had just filled the tank with gas. I checked cap several times to make sure it is tight.

So I am wondering if there might be a problem with the gas cap.

 

Look in a Haynes Manual for a definiton of 0309

 

Hayes manual just list 0309 as EVAP Leak.

Alldata lists that Nissan has issued the following TSB's for EVAP codes.

02-003

00-085

00-060

If anyone has access to these TSB could you please post.

Thanks

 

Look in the TSB Sticky.

 

anyone know where i should even start to look to fix the problem?

 

0705
Diagnostic Trouble Code 0705 points to a problem with the Evaporative Emission Control System.

This malfunction is detected when the EVAP control system has a leak or the EVAP control system does not operate properly. (EVAP = EVAPorative emissions.)
Possible causes include...
- incorrect fuel tank vacuum relief valve
- incorrect fuel filler cap
- fuel filler cap vent remains open or fails to close
- foreign matter caught in fuel filler cap
- a leak in the line between the intake manifold and the
EVAP Canister Vacuum Control Valve
- foreign matter caught in the EVAP CVCV
- leaks in the EVAP canister or fuel tank
- leaks in the EVAP purge line (pipe and rubber tube)
- EVAP purge line rubber tube bent
- blocked or bent rubber tube to EVAP control system pressure sensor
- loose or disconnected rubber tube
- EVAP CVCV and circuit
- EVAP Canister Purge Volume Control Solenoid Valve and circuit
- absolute pressure sensor
- tank fuel temperature sensor
- MAP/BARO switch solenoid valve and circuit
- blocked or bent rubber tube to MAP/BARO switch solenoid valve
- O-ring of EVAP CVCV is missing or damaged
- water separator
- EVAP canister saturated with water
- EVAP control system pressure sensor
- refueling EVAP vapor cut valve
- ORVR system leaks

Hayes manual just list 0309 as EVAP Leak

http://forums.maxima.org/showthread.php?t=265311

 

could it be possible that i'm only getting these codes because i have a y pipe?

 

There is no info on 0309 in the Stickies....

My car is totally stock and I still get both codes. Maybe they are both suppose to come on at the same time???

As I have posted previously. It looks as though Nissan has released a several TSB's on the EVAP system. I am courious to see what info is mentioned.

 

Imgetting a code 1447 "EVAP purge flow monit fault" did anyone have this problem ??? i changed the caniister solenoid and all that in the back, the black purge flow valve above the intake and i still have the check engine light on ....i been dealing with this for a month now and cant figure it out somehow.... HELP!!!

 

Can you tell me where you got the solenoid and the purge flow valve? I can't seem to find anyone with it...

 

Guys, check this thread:
https://maxima.org/forums/showthread...92#post3062792