I think i am fucked

[Tbolt]

edited

[jlevie]

With the work you've done, there is a real possibility of intake leaks. They could be the cause of the rough idle.

If the engine was running okay before the fuel pump died, it would be reasonable to assume that those injectors were good. I'd put them back in and throughly check for intake leaks.

[vivalegreg]

ah sucks man...i may be able to help you with a spot to keepit/look at it for a day or two if youd like. what part of md are you in? i have a garage where i keep all my e30s..

[Tbolt]

i live northeast of baltimore about 40 minutes in perryville . I go to school at umbc though, but the car is in perryville and would have to be towed from there.

that would be awesome if you could help out.

[ethree]

Have you tried swapping afms with a known good unit? I know they can cause odd idle and poor running.

[Tbolt]

I am off work all weekend, I am going to try and figure out the next step. Where can I get a working afm? thats the piece attached to the airbox right? I have one from my old vert but I can't guarantee that it works. I suppose I should try it.

And for intake leaks, consult the bentley?

[jlevie]

The best diagnostic for intake leaks is to have a pro smoke test the intake and crankcase.

[416stroker]

And. If your gonna check for vacuum leaks your self use starter fluid. Spray at the base of the intake and around the vacuum lines if you hear The rpms jump you have one or it could bog the engine down.

[jlevie]

Carb cleaner or starter fluid is great for leaks around the intake that you can hit directly. For other leaks, not so much. This technique works great on injector seals, but not well on the intake manifold gaskets or other places on the engine. So if you get a negative result this way it doesn't mean that there isn't a leak.

A mostly complete list of possible sources of an intake leak is:

Intake boot
Throttle body gasket
Intake gaskets
FPR vacuum connections
Evap control system
Crank case vent hose
Injector seals
Valve cover gaskets
Oil filler cap seal
Dipstick o-rings
Oil return tube seals
Brake booster connections
Brake booster