So, now what?

[cobram at juno.com]

Stop throwing away money on shots in the dark and get yourself a fuel
pressure gauge with CIS fittings and follow the test procedures in the
Bentley.  BTDT.  If it's a hot/warm start problem it could be the check
valve at the fuel pump. Recent threads suggest that the JC Whitney, Tool
Warehouse of BMP versions (+/- $65) are up to the task.

How are your ECU grounds?  Bad grounds will cause the problems you
describe too.  I have a small pile of dealer invoices (including a $750
fuel distributor and a few fuel pumps) from the previous owner of my '90
200TQA, the paper trail showed that the no start/stalling problems were
finally solved by a gas station mechanic who knew enough to clean up the
ground connectors at the manifold, something the "factory trained" techs
at the dealer never did.

BCNU,
http://www.geocities.com/cobramsri/

 "Doug Yoder" <yoderw at msoe.edu> writes:

> In the ongoing saga of my 87 5ks wagon...
>
> Got a used fuel distributor from Chris at force5 (just in time, too,
> as the starter in my other car went out the day UPS came...).
> Installed it, and the car runs! But rough, so I put in some fresh
> gas and
> injector cleaner, and install a new valve cover gasket, since it
> needed it
> anyway (old one was in pretty rough shape).  Now it runs great!...
> for
> about 4 days.
> My fiance drove the car home from work, then we were going to go
> out
> tonight, and had the exact same problem: no start, gas starved,
> almost no
> gas coming out of the fuel distributor.
> I checked the movement of the air flow plate, and the clearance on
> the air
> flow sensor roller.  I'm pretty sure the new distributor didn't
> fail, so I
> guess that something else is the problem... control pressure
> regulator?
> There are two things here that have something to do with fuel
> pressure, I
> think.  There is the control pressure regulator (little grey box
> sitting
> on the front of the fuel distributor, and the fuel accumulator (i
> think
> thats what this is - small cylinder between air boot and inside of
> fender).  From what I can tell, there is good pressure at all three
> lines
> on the side of the distributor, so that indicates to me the control
> pressure regulator.  The current for the CPR looks OK (hovers around
> 0 mA
> at idle).
>
> So, now what? Does this still sound like a fuel system problem? I'm
> hoping
> it's not the CIS computer... anyone have any suggestions or other
> theories?

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