[Shotimes] Re: Wouldn't start, now another problem

Justin Schick jschick@aafp.org
Fri, 11 Apr 2003 11:18:16 -0500


I would reset the PCM and let it re-learn the idle strategy etc from
scratch.

I have an extremely intermittent phantom problem with my PCM, where it
will die while turning a corner. When it does this and I try to
immediately restart, the fan will be on constantly. Stupid as it sounds,
the only fix I've come across that works every time is to plug my LPM
(which I don't use any more otherwise) in and take it back out. 

I also recall the fan coming on automatically if I've got the ground
for the PCM undone and I go turn the key to the ON position.

At any rate, your problem definitely sounds EEC related. Good luck.

Justin
92 with a blown diff, awaiting a new quaifed MTX

>>> "Michael Humbert" <humbem@rpi.edu> 04/11/03 10:57AM >>>
I applied battery power to the fuel pump, signal return, self test
input, and self test output, but not all at the same time.  I recalled
from doing it at a previous time that I needed to connect two of the
pins to battery power.  I thought I recalled which ones were
necessary,
but in the end I connected the signal return and fuel pump pins to the
battery.  After doing this and hearing the noises from the fan area
and
fuel rail, I disconnected the battery power (probably on for about 10
seconds).  After this, I correctly connected the self test input and
signal return to the battery, but that didnt make the test work.  So I
then connected the self test input and self test output to battery
power
thinking that I confused the self test output and signal return on the
diagram.

Things to note:

*Between last night and just now the idle seems to have fixed itself.

*The kicking out when full throttle is quickly applied still occurs,
but
seems to have diminished VERY SLIGHTLY

*The cooling fan runs continuously now.

My best guess is that somehow the injectors were running when the fuel
pump was powered (maybe the seals blew?), which sent some gas into the
cylinders without there being spark.  As for the fan, I have no clue.

Mike