Re: [T3] idleing all over the place.

[stans4@ix.netcom.com (Stan Schaefer)]

On Tue, 11 May 1999 21:30:59 -0700, you wrote:

>for some reason when i start up in the morning my '71 F.I. square doesn't
>want to turn over the first couple times i try it. it always starts, but it
>may take a couple trys. then it idles funnythe whole time its on, it goes
>up and down. sometimes vey high and sometimes close to killing the engine
>low.
This could be from a number of causes.  The fuel ring isn't holding
pressure over time, so it takes a little bit to get the pressure up to
where it's getting some fuel out the injectors.  If you bump the key a
couple of times after sitting, it'll usually ('å˜ht off.  This is
only a work-around.  You could have old, cracked hose that's bleeding
pressure off(and being a fire hazard), so check that and replace it if
you haven't already.  You could have a leaky injector, need to pull
them to see that.  The Bentley manual shows which wire to ground in
the engine compartment to get the pump to run while checking things
out, Muir also.  If you don't have either, you need them.   I've never
had this problem, but others have had a fuel pressure regulator that
wouldn't hold pressure after shutoff, kind of a remote possibility.

 The idle problem could be from a number of causes.  You need to make
sure all the air and vacuum hoses don't have leaks, replace as
necessary.  A little air leaking here and there will cause poor idle,
that pressure sensor is very sensitive.  Injector nose seals are
important, too.  If the idle is set too high, it will cause the
hunting condition you describe, too.  Without being there, it's hard
to tell, need to listen to it.  Finally, I've had the auxilary air
regulator strip the ajustment locking screw and it flopped back and
forth causing the condition you describe.    Replace hoses first, and
check the idle adjustment, then get back to us.

>my generator light is on... should this cause alarm?
Yes.  Pretty soon, you won't be able to drive it once the battery
voltage gets too low.  You're going to need to run the whole charging
circuit checkout.
>also, the guy i bought the car off of had a bunch of parts that i also paid
>for. they all were fuel injection components. should i assume he was aware
>of a F.I. prob, and was going to replace all of these parts?
>
Might be like me, I've got enough FI components for another car.
Every time I see a wreck, I accumulate a few more.  If I've got them,
I probably won' t need them, but if I don't, that'll be the part that
I really need and can't get.


-------------------------------------------------------------------
Too much? Digest! mailto:type3-d-request@vwtype3.org Subjbscribe