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, Thu, 29 Jan 2015 19:09:20
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Vern - -
Thanks for your concern, if you can help I might put out an SOS but for now, your moral support means a lot, keep it up.
I thought I had it last night and was about to write a "God Bless Tom Townsend" post. On his wonderful townsendimports web site he has posted a "Saab Parts & Service Information" from March 1991 for Cold Weather Starting Problems for 1988-89 900s with EZK Ignition.
It calls for a grounding jumper mod for the hall-pulse amplifier mounted on the coil bracket, with the explanation, "The ground wire for this power stage has a relatively long travel resulting in the possibility of enough ground circuit resistance to affect cold weather engine starting."
I did that mod, by flashlight in the driveway last night, and the car started, almost instantly, better than it ever has, and ran strong. I shut it off, cleaned up and went to bed happy.
This morning (more snow as you know) it started again equally quickly and strong, but only ran about half a minute before dying away totally, and wouldn't restart, multiple several-crank tries without a hint of firing.
This afternoon, tried it again and it fired instantly, and I held it at 2700 RPM for about three minutes without a glitch, then it tried to die once, came back strong and then died totally away and wouldn't restart. Put a timing light on it and cranked and it sprang to life again instantly, strong flashing, but died after only a few seconds, flashing from timing light stopped as it dropped out and no flashing as I cranked and no willingness to fire.
Townsend site also has a service bulletin from August '89 on testing the crank-mounted Hall sensor, that I guess I'll move on to next.
Before all this I tried pointing a small heater at the coil area to see if that helped but no change, no sign of wanting to start.
posted by 71.173.7...
, Thu, 29 Jan 2015 19:09:20, Sun, 1 Feb 2015 11:25:30, Mon, 2 Feb 2015 23:41:44
, Thu, 29 Jan 2015 23:28:14
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