Kyleinreallife Posted March 23, 2018 Share Posted March 23, 2018 What relays am I looking at here? What is this and what’s its purpose? Link to comment Share on other sites More sharing options...
whowey Posted March 23, 2018 Share Posted March 23, 2018 What relays am I looking at here? What is this and what’s its purpose?The canister is the evaporative or charcol canister. It's part of the emissions system. Sent from my SM-S727VL using Tapatalk Link to comment Share on other sites More sharing options...
DirtyComanche Posted March 23, 2018 Share Posted March 23, 2018 Assuming you're talking about the cylinder bolted to a bracket on the top of the frame rail, center of the second pic, that is your charcoal canister/evap canister. It 'stores' the gas vapours from the gas tank, and a valve in it allows them to be vented into the intake when the engine is running. You can delete it in some jurisdictions. Link to comment Share on other sites More sharing options...
Kyleinreallife Posted March 23, 2018 Author Share Posted March 23, 2018 Assuming you're talking about the cylinder bolted to a bracket on the top of the frame rail, center of the second pic, that is your charcoal canister/evap canister. It 'stores' the gas vapours from the gas tank, and a valve in it allows them to be vented into the intake when the engine is running. You can delete it in some jurisdictions. Great thanks! I’m working through an mpg issue. Does it have any affect? What would be the pros/cons of removing it? How can I find out if I need it in CA (probably)? Also, I just replaced my map sensor, the one I pulled off was from a GM (previous egr valve was off a Le Mans), idk what else the PO poo poo’d. Anyone know what effect having the incorrect map and egr would have? So far I’ve replaced: iac, tps, o2, egr valve&solenoid, map....anything else I should do before moving on to the injectors and fue pump? (Fuel filter also replaced)87 XJ WAGONEER I-6 NP242 AW4 Link to comment Share on other sites More sharing options...
Kyleinreallife Posted March 23, 2018 Author Share Posted March 23, 2018 Bonus info, already pulled and cleaned the throttle body. 87 XJ WAGONEER I-6 NP242 AW4 Link to comment Share on other sites More sharing options...
DirtyComanche Posted March 23, 2018 Share Posted March 23, 2018 It won't affect MPG unless there is something really weird going on. And if you remove it in CA you'll probably go to jail. Link to comment Share on other sites More sharing options...
Kyleinreallife Posted March 23, 2018 Author Share Posted March 23, 2018 It won't affect MPG unless there is something really weird going on. And if you remove it in CA you'll probably go to jail. Lol tell me about it! I keep a brand new cat on hand just to weld on and off when it needs smogged. 87 XJ WAGONEER I-6 NP242 AW4 Link to comment Share on other sites More sharing options...
omega_rugal Posted March 23, 2018 Share Posted March 23, 2018 2 hours ago, DirtyComanche said: It won't affect MPG unless there is something really weird going on. And if you remove it in CA you'll probably go to jail. It WILL affect MPGs if you don`t plug the hoses properly, don`t just let them hanging... very soon in CA you won`t be allowed to fart... Link to comment Share on other sites More sharing options...
Pete M Posted March 23, 2018 Share Posted March 23, 2018 the canister traps the stinky fumes that come out of the gas tank when it warms up and then lets the engine suck them in to be burned. without it there's a decent chance of your truck smelling like gas on warm days. Link to comment Share on other sites More sharing options...
DirtyComanche Posted March 23, 2018 Share Posted March 23, 2018 1 hour ago, saveevryjp1998 said: If it were me, I would start with grounds and vacuum lines. Its time consuming but cheap. It is also a good starting point to learn how everything works. Lots of things work off vacuum especially on pre- high output (90 and down) On these it even could be a matter of 4wd or not. Its hard to tell what you have really from the pics since the overflow bottle is there and maybe not original to the truck. The oil filter is still vertical which makes me lean renix as well as the ports by relays. A bigger pic of the whole engine bay would give people a better perspective to know more whats going on under there. That's a Renix. HO has totally different wiring. Link to comment Share on other sites More sharing options...
Kyleinreallife Posted March 24, 2018 Author Share Posted March 24, 2018 If it were me, I would start with grounds and vacuum lines. Its time consuming but cheap. It is also a good starting point to learn how everything works. Lots of things work off vacuum especially on pre- high output (90 and down) On these it even could be a matter of 4wd or not. Its hard to tell what you have really from the pics since the overflow bottle is there and maybe not original to the truck. The oil filter is still vertical which makes me lean renix as well as the ports by relays. A bigger pic of the whole engine bay would give people a better perspective to know more whats going on under there. It’s renix. I did cruisers tips already (you mentioned grounds) and replaced all vac lines, except for cruise control which I plugged and deleted bc the stalk is broken. It’s run rich since I bought it and just just been workin my way through. Someone put the orange top Ford injectors on, not sure if that had anything to do with the mismatched egr and map sensor. I’m trying to get back to stock, minus the injectors—want to keep the 4 ports although I’m not sure if these particular ones are compatible. Haven’t done a fuel pressure test yet. Anyone know what specs I should aim for?87 XJ WAGONEER I-6 NP242 AW4 Link to comment Share on other sites More sharing options...
Kyleinreallife Posted March 24, 2018 Author Share Posted March 24, 2018 It WILL affect MPGs if you don`t plug the hoses properly, don`t just let them hanging... very soon in CA you won`t be allowed to fart... How so? I’ll double check to make sure all connections to the canister are good, again this isn’t the vacuum reservoir canister to be clear.87 XJ WAGONEER I-6 NP242 AW4 Link to comment Share on other sites More sharing options...
Eagle Posted March 24, 2018 Share Posted March 24, 2018 If that's an '87, what's with the coolant recovery bottle by the firewall at the top of the photo? Does your vehicle have a replacement radiator with a radiator cap? Link to comment Share on other sites More sharing options...
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