Re: Wierd 4kq CIS Fuel Problem

[Todd Phenneger <phen9461@uidaho.edu>]

Ok, Update with more info.  more follows below.  BUT, We pulled AN
injector on the other 4kq just to see what it did and now IT wont start.
What gives.  Did we possibley damage something or move something in the
CIS unit by cranking it with the injector lines disconnected.  We pulled
the #1 injector line off and tried cranking both cars like this to see
if fuel came out.  Fuel came out. I just hope something didn't get damaged
when we did this.  Now injetor lines are back in and cars will only start
with Starter fluid OR manually adjusting the Air Intake Plenum.
	Read Below......

On Sat, 6 Feb 1999, Huw Powell wrote:

> >         Replace hose, car wont start.  REpeat procedure.  Car only runs If
> > I move plate or put starting fluid into motor.  So without my intervention
> > car isn't getting Fuel.     WHY?  I checked all hoses for leaks.
> > Everything appears fine. No gaping vacuum leaks.  Any Ideas on whats up?
> >         Seems to me the metering plate os not lifting on its own.
> 
> looks like either:
> 1. as you say, plate is not moving.  Could be stuck, or there's a huge
> air leak causing it not to get lifted. Does it seem to take much to lift
> it by hand (Mr. Goodpliers)?  & time to check for huge airleaks.  Well,
> ones big enough to provide the starting intake vacuum with a source
> other than the air plate.

	I hecked all that already.  Jeesh. I thought I already said that.
:-)
 
> 2. at it's lowest position and maybe the first few mm of lifting it's
> not letting any fuel through yet?  i dunno, that's unlikely.  I wonder
> how the cranking engine is normally supposed to lift the plate?  Because
> if the mixture adjustment is so lean that in that lift range no fuel, or
> not enough fuel, is present, your problem would arise.

	THats what I thought at first but it seems the plenum is lifting.
Dang cars just wont start now.  Ant the #2 car worked fine before we
pulled the injector.

> 3. Oh, could your airfilter, intake tubes be clogged?  No, you say
> starting fluid will start it.  following that, will the engine keep
> running, say if you keep it revved up?  If so, air is certainly getting
> through there and causing fuel to flow.

	Nope.  Clean K&N.  ANd other car wont start now either.

> I'm just guessing here... no btdt.
k
	Well, thanks to you all.  Please, any more suggestions would be
helpful.  I'm really thinking it has something to do with the pulling of
the injector hose.  I just hope I didn't damage the CIS unit.
	L8R

	Thanks

	Todd