EVAP Control System, what does this do?

-Thanks

 

I am 90% sure that their is a Technical Service Bulletin about this..

http://www.alldata.com/recalls/

go check the year of your car..

if so have the dealer fix it for free

 

Here's the info I found from that site....

http://www.alldata.com/TSB/41/98416289.html

Doesn't really mention the EVAP Control System.

 

damn i was hoping you had a 96

http://www.alldata.com/TSB/41/96411757.html

well i will shut up now and let Daniel give you the real answer

 

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


This is a "jackpot" DTC. It points to so many things you don't know what to check. It is often combined with another DTC which is more specific and therefore more helpful.

 

Wow, didn't know it was gonna be that big of a problem. I guess it would be best if I had Nissan check it out? I just had my alternator replaced, would that cause it?
I also reset the Check Engine Soon light so now it's not there anymore, would it lid up again? Should I wait?
-Thanks.

 

If the engine is running well I suggest you reset the Engine Control Module and drive normally. Maybe the problem won't come back. Maybe it will come back with two or more Diagnostic Trouble Codes, and make it easier to pin down.

 

That's exactly what I did. I reset it the light, now it's gone, I wasn't sure if it'll come back or what.

I guess now I'll just drive it like normal and see what happens. When I got my alternator replaced last week, they said my engine is in excellent condition. Let's see what happens.

Thanks

 

Hey...I got this code couple weeks ago. Was also accompanied by a code 0705 which is EVAP Canister Vent Control Valve. Bought one from courtesy nissan for $45. Hope you get another code to narrow it down, or maybe it fixed itself?