Topic: Need Help

[toywthbdydmge]

OK I decided to move my wires around and eliminate some wires that were just hanging but in the process I broke a piece on top of the valve cover so I just plugged up the hoses. The problem is it starts and runs fine but under any kind of load it just dies on me but starts right back up so I'm wondering if the two circled items could cause this seeing that the hoses I plugged were connected to these. The motor is an 88efi Thanks

[79coyotefrg]

i'm not sure what they do but its very possible its the problem

[*ROKTOY*]

I would hook up the rear VSV as it looks like it has to do with your fuel pressure regulator. The other has to work with the evaporated emissions charcoal canister.

[emsvitil]

The VSV on the left ups the fuel pressure in 4WD when your engine is to hot by venting vacuum to atmosphere...

I don't think it's really needed, and it's for such a small percentage of running conditions, you really don't need it.

For that one, connect the 2 hoses that go into it together, omitting the VSV.

(the hose will then apply vacuum to the the fuel pressure valve to vary pressure depending on intake vacuum).



I don't have the VSV on the right, but it looks like some sort of smog thingie.    

I would think that plugged up the engine would run better (although with more smog), but you could try connecting the hoses together like the VSV on the left......

[zippo]

VSV vaules cause your engine idle to go up, when it is under load, IE, AC, power steering pump, Engine temp, and 4WD, etc. I removed most of mine and the EGR valve. really noticed a possitive difference too...