fuel injection or emissions rebuild to inspect?

jad67 · #1 10-10-2006, 02:24 PM

I have an '85 CJ7 with a 258 and an aftermarket carb and all the emissions / vacume lines have been cut from canister. Would I be better off (ease/money) rebuilding emissions system with the new carb or is there a cheapER way to put in EFI? Any help is appreciated.

Pete88YJ · #2 10-10-2006, 02:31 PM

What do you need for emissions inspection? It differs greatly by state (for us in the small states) and sometimes by county (for those guys in the big states.)

Here in MA, I've got a weber carb, GM HEI, an EGR valve, a cat, and very little else. My Jeep goes up on the dyno and runs nice and clean. We do not have a 'visual' inspection.

If you WANT fuel injection, that's a differnet story.

I'm asking what you NEED to pass inspection in your state.

Pete

LEVE · #3 10-10-2006, 02:39 PM

Before you go any further, what are the emissions laws in your State. Do they have tailpipe only emissions, or visual inspection as well?

If you can go with EFI, do it and don't look back. There are plenty of types: <ul type="square">[*]DIY EFI[*]Custom EFI[*]Howell EFI systems[*]Afordable EFI[*]MegaSquirt[*]Junkyard EFI[*]HESCO SMPI[/list]
Pick your poison...however it may be just less expensive to swap in a 1991, or later, 4.0L engine and it's electronics.

GeeAea · #4 10-11-2006, 01:59 AM

[ QUOTE ]
In the new emissions test, your vehicle is either driven onto a dynamometer (a treadmill-like device that simulates actual driving conditions) or, if your vehicle is a 1996 or newer it will be connected to the emission analyzer via the on-board computer in your vehicle (an OBD test). For dynamometer tests, the analyzer tests the emissions from the tailpipe for specific pollutants such as carbon monoxide, hydrocarbons and oxides of nitrogen. For an OBD test, the inspector connects the on-board computer on your vehicle -- which continuously monitors the engine and emission control systems -- to the inspection analyzer and downloads relevant data. Click here to learn more about the OBD test. If your vehicle passes both the safety and emissions portions of the inspection, the analyzer will print a sticker for the vehicle's windshield and a copy of the test results for your records.

[/ QUOTE ]

R.I. DMV emissions FAQ

jad67 · #5 10-11-2006, 01:26 PM

Yes they will put it on a treadmill and I can probobly get it done without a visual. I have a cat but there is a skip in my idle i'm assuming is a vac prob, and my vac advance on the distributor is always on (that is to say advanced even while idleing in park) If you can get it to pass in Mass then I think I shound try it here. EFI is probobly too rich for my blood right now. Besides, Idon't know the difference among that list.

LEVE · #6 10-11-2006, 05:23 PM

[ QUOTE ]
...Besides, Idon't know the difference among that list.

[/ QUOTE ]

If you click on each of the products on the list it will take you to the site where you can learn about the product/modification.

EFI is not out of the price range of most Jeep owners, they just think it is...

jeepnut_nh · #7 10-11-2006, 05:51 PM

sounds like your advance vacuum is connected to the wrong vac port, should have no vac at idle IRRC

RickCJ7 · #8 10-13-2006, 03:50 AM

Do you have a diagram of where all those missing hoses should go? My 84 CJ7 has that diagram on a sticker located just in front of the radiator. That doesn't mean it is easy to understand though.

LEVE · #9 10-13-2006, 07:36 AM

Read/print/save/memorize this:

The BBD Bible

unhumen · #10 10-13-2006, 05:18 PM

http://www.pciinc.com/applicationdetail.cfm

I think this link should work,Cut and paste.

That URL is for Pollution Control Industries. This stuff is not cheap, depending on how much customizing the Previous owner did under the hood.
Which is most likley why he sold it to you. You gave no history in your post as to how you came into posession of this "CUSTOMIZED" (?) vehicle.
Being a state that requires inspection, if you bought it from a business with a licence you may be able to take it back, or get some money towards fixing it.
If you bought it from a private party you may be screwed, depending on your state laws.

Either way you are about to get your knuckles spanked for not doing your homework, in the first place. This is what they call a life lesson, in the school of hard knocks. Unless you got the vehicle so cheap it can justify a large outlay of cash/credit to fix it.

good luck