GTA lives again

[Shannen Durphey]

Hee hee.  Too many times this type of thing happens.  Makes working on
some cars like open heart surgery.  You know, don't touch anything
except what you absolutely have to.
Glad to hear it's up and running.

Shannen
Andrew F. Gunnesch wrote:
> 
> Thanks for everyone's input on getting my GTA back on the road.
> A refresher:
> 
> 1989 TransAm GTA
> 5.7L TPI, MAF, '165 ECM
> 
> A couple of weeks ago I had retimed it.  A few days later it started getting
> an intermittant miss/cut out on the road.  It would happen a few times per
> day on my trips.  I meant to get to it this weekend...
> 
> Thursday at work the car got worse.  It refused to start after a little bit.
> I had no time, so left it there for a couple of days.
> 
> Yesterday I went out to diagnose it.  Had I had a diacom or scan tool, it
> would have been trivial, but...
> 
> anyways, after following a number of tests, I decided that the ECM wasn't
> getting reference signals from the distributor, so the fuel injectors
> weren't pulsing.  I took the 4-wire connector off of the distributor,
> cleaned it and pinched down all of the connectors, hooked it back up, and
> the car runs flawlessly again.
> 
> Apparently I had disloged the connector ever so slightly, or stretched one
> of the wires, causing the intermittent no reference pulse symptom.  Now as
> to why the speedometer would jump up, I have no idea...
> 
> Anyways, it's running great again.  I'm sorry to the Michigan guys that I
> wasn't able to make the M3 event.  I was really looking forward to meeting
> everybody.
> 
> For the DIY_EFI guys, if someone offers custom chip tuning for a '165 ECM,
> please contact me offline, as there are some changes that I NEED to make
> to mine to get rid of my detonation.
> 
> And if anybody has a set of 24 lb/hour injectors that DO NOT LEAK, I'm also
> interested.
> 
> Thanks for "listening"
> 
> --andrew