ferrariowner123 Posted October 30, 2013 Share Posted October 30, 2013 I'm thinking about cleaning up my engine bay, and just making the engine a little more simple. I've read from all of the Z guys that the EVAP canister doesn't really do anything other than keep fuel vapors out of the atmosphere? At least that's my understanding. In that same article it said that it doesn't effect emissions, and doesn't hurt fuel efficiency. Can any of the Nissan gurus confirm that? All my state does is the sniffer when it comes to the emissions, can i ditch the can without a concern of a "no pass"? Thanks -Kyle 1 Link to comment Share on other sites More sharing options...
adamzan Posted October 30, 2013 Share Posted October 30, 2013 If they look under the hood for all the components, that could be an issue. Also you'll have an engine light on all the time. Link to comment Share on other sites More sharing options...
devonianwalk Posted October 30, 2013 Share Posted October 30, 2013 I almost snagged a canister from a '98 that was dangling by the hoses at the JY last weekend. I shook it to see if I could detect loose carbon but, couldn't really determine. Has anyone tried gutting the can? Link to comment Share on other sites More sharing options...
mluczaj22 Posted October 31, 2013 Share Posted October 31, 2013 i know here in az you would fail emissions. 1 Link to comment Share on other sites More sharing options...
mluczaj22 Posted October 31, 2013 Share Posted October 31, 2013 i know here in az you would fail emissions. Link to comment Share on other sites More sharing options...
theexbrit Posted November 1, 2013 Share Posted November 1, 2013 I just replaced mine & the valve, about $300 It recirculates the fuel vapor back into the inlet manifold to be burnt by the motor. It would fail in Cali. Link to comment Share on other sites More sharing options...
devonianwalk Posted November 1, 2013 Share Posted November 1, 2013 We do not have vehicle inspections in South Carolina. I would just love to get the SES light to turn off as I have been staring at it for the past four years (est.). Link to comment Share on other sites More sharing options...
ferrariowner123 Posted November 1, 2013 Author Share Posted November 1, 2013 I dont have inspections either. Nor do they check for check engine lights. The last two times I have gone to get my cars emissions checked, they just stick a sniffer up her tail pipe and have me run the engine up to 25 mph or something. But just to confirm, I can disconnect my Evap stuff and it won't hurt my mpg or my emissions (in reference to what comes out of the tail pipe), does that sound right? Thanks for the replys -Kyle Link to comment Share on other sites More sharing options...
Alkorahil Posted November 1, 2013 Share Posted November 1, 2013 The canister will not effect MPG or what comes out the tailpipe. As stated above it will cause a CEL to come on however. In many states a CEL on is an auto-fail. 1 Link to comment Share on other sites More sharing options...
theexbrit Posted November 1, 2013 Share Posted November 1, 2013 We do not have vehicle inspections in South Carolina. I would just love to get the SES light to turn off as I have been staring at it for the past four years (est.). Just stick some duct tape over it, hey presto! No more cel!!! 1 Link to comment Share on other sites More sharing options...
Alkorahil Posted November 1, 2013 Share Posted November 1, 2013 Just stick some duct tape over it, hey presto! No more cel!!! I actualy had that with a vehicle. They had put black electrical tape over the CEL so you could not tell if it was on or not. It was very clever and impossible to tell from looking at it. 1 Link to comment Share on other sites More sharing options...
devonianwalk Posted November 1, 2013 Share Posted November 1, 2013 My professional mechanic buddy told me to do the same! He also informed me that if I start to hear funny noises to turn the radio up. I'll tell you one thing, I will never buy a used car that is advertised as a "mechanic owned" vehicle! 1 Link to comment Share on other sites More sharing options...
theexbrit Posted November 3, 2013 Share Posted November 3, 2013 I actualy had that with a vehicle. They had put black electrical tape over the CEL so you could not tell if it was on or not. It was very clever and impossible to tell from looking at it. My professional mechanic buddy told me to do the same! He also informed me that if I start to hear funny noises to turn the radio up. I'll tell you one thing, I will never buy a used car that is advertised as a "mechanic owned" vehicle! Link to comment Share on other sites More sharing options...
Precise1 Posted November 4, 2013 Share Posted November 4, 2013 I actualy had that with a vehicle. They had put black electrical tape over the CEL so you could not tell if it was on or not. It was very clever and impossible to tell from looking at it. Pulling the bulb was too technical? B Link to comment Share on other sites More sharing options...
Alkorahil Posted November 4, 2013 Share Posted November 4, 2013 (edited) Pulling the bulb was too technical? B It was an LED mounted to the circuit board. Edited November 4, 2013 by Alkorahil Link to comment Share on other sites More sharing options...
Precise1 Posted November 5, 2013 Share Posted November 5, 2013 Ahh, thank you for the education! Ehem... So, clipping two posts on an LED was too technical? B 1 Link to comment Share on other sites More sharing options...
ferrariowner123 Posted November 7, 2013 Author Share Posted November 7, 2013 Is there a way to ground out or trick the computer into thinking the evap is working normally? -Kyle Link to comment Share on other sites More sharing options...
Alkorahil Posted November 7, 2013 Share Posted November 7, 2013 Ahh, thank you for the education! Ehem... So, clipping two posts on an LED was too technical? B I dont think these were brilliant people trying to pull the wool over us....... 1 Link to comment Share on other sites More sharing options...
Alkorahil Posted November 7, 2013 Share Posted November 7, 2013 Is there a way to ground out or trick the computer into thinking the evap is working normally? -Kyle interesting. Perhaps just closing the loop will work? You would haev to look at what kind of signal it gets from the sensor, check the FSM for the testing proceedure to see. Link to comment Share on other sites More sharing options...
Precise1 Posted November 7, 2013 Share Posted November 7, 2013 Yep, unless it is a sensor that delivers variable resistance or voltage, but even then, maybe. One would think this should be pretty straight forward thoughas it can't possibly have anything to do with active engine systems management. I dont think these were brilliant people trying to pull the wool over us....... This is a good point! B 1 Link to comment Share on other sites More sharing options...
ejin4499 Posted November 11, 2013 Share Posted November 11, 2013 If you remove the evap canister 1 .You need to find a way to vent the vapor so you don't blow a weld or a hose. Easy answer put a filter on the end of the line coming from the tank or on the vent line under the truck by the tank. Just make sure water wont get back inside it. 2. Now you have a vacuum leak that needs to get pluged. Screw in the hose with a clamp on it is my fav for that sort of thing. Link to comment Share on other sites More sharing options...
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