Hi all, I got my 84 going again...several folks
suggested changing the Temp Sensor II but I'm stubborn
and just kept testing it and getting OK readings. I
did take the sensor out of my other van and tested
that one with a pot of boiling water; now I have a
good spare too.

What I did do is two things...I think the rich running
was caused by a worn-out O2 sensor (not Bosch). It is
no longer fouling plugs at least, and the blue smoke
is no longer in the exhaust.

The herky-jerky problem is gone too. One of the fuel
pump relays made a rattling sound inside when I took
it out, so I switched in another from the parts van. I
had tested that relay, but obviously when the loose
part was not loose. This isn't the first time I've had
a problem with a part breaking but not yet being
completely broken. So maybe completely random engine
problems indicate a loose part in the FI system; not
fun to track down.

What I'm wondering is if the fuel-pump relay (Relay
C)could stick open or closed or whatever state it is
in and contribute to rich running? Because one other
possibility that I am going to have a mechanic test is
a leaky fuel injector ....

__________________________________
Do you Yahoo!?
Yahoo! Calendar - Free online calendar with sync to Outlook(TM).
http://calendar.yahoo.com