Hi, you can spend a week trying to figure out what is the problem without
any spare parts.

This sound fuel related, i agree. So find a shop or buy a fuel pressure
tester. I feel you have a bad injector (even if new) or a faulty fuel
pressure regulator. You can also remove the fuel injector rail and look at
the spray pattern.

Second choice: ECU going bad. Tyipical lately on Digifan.

Third one: something related to the Temp 2 sender, this one can be bypass
with a cheap resistor.

Fourth choice, distributor related.

I'm sure you have unplug the OS??

Ben

On Sun, 24 Jan 2010 19:04:19 -0500, Mark Drexler <mdrexler@ZING-NET.CA> wrote:

>HI folks. Not trying to fill your inbaskets, but you all seem to enjoy the
>repartee. First, thanks for all your suggestions. Long day of trying things,
>in parking lot of Ramada Inn, with some progress, but ultimately not
>successful. While I'd love to fix this myself, may limp to a south florida
>garage in the am if I can find one. My own next step would be to test fuel
>pressure, maybe a complete drain of the tank, and a new fuel pump? I still
>feel like I am fuel starved. I do have a couple of questions though.
>Should I have a crankcase breather hose leading to the air cleaner in my 91
>GL? I do not seem to.
>Given I've been fiddling all day, is there any kind of 'reset' necessary, to
>
>Clean memory or anything like that. I did not touch the ecu.
>Todays efforts:
>- checked idle stabilizer - humming, re/re control unit to clean contacts
>- adjusted throttle position switch to spec  for idle
>- new fuel filter - previous one was 3k old, but was installed backwards
>when I looked it. Lots of crap came out
>- distributor/wires, checked all connections including hall, confirmed spark
>- pulled off all engine compartment grounds, cleaned and tightened
>- pulled and cleaned contacts on 2 temp sensors
>- disconnected o2 sensor
>- some other stuff I forget
>Current status - starts very rough, sputters, and misses, but I can now get
>revs up eventually, and once at operating temp, will idle roughly at 900rpm,
>And accelerate roughly to cruising speeds, in other words I am sort of
>mobile. Once engine turned off, a restart, even immediately brings the same
>sputtering/missing, and eventually smooths out somewhat.
>Next steps? THANKS
>
>Mark