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Subject:No spark -- Ignition Control Unit?
From:Geza Polony
Date:Wed, 9 May 2007 10:34:17 -0400

Hi folks,

I just changed the wiring harness on my 1.9 and now there isn't any spark.
All the pins in the ECU test good according to Bentley, coil tests good per
Bentley, and there's power to the Ignition Control unit (Hall control.)

Still, there's no spark.

The voltage test across the coil, from 1 to 15, is negative--it doesn't jump
then fall back when ignition is turned on. Also there's no voltage drop when
grounding out the middle terminal to the Hall sender (it stays near battery
voltage.)  And the voltage between outside pins of the distributor connector
is low, 2.1 volts when Bentley says 5 v minimum. This is all Bentley 28.36-37.

All these tests were good a couple of months ago.

Replace the Hall Control (as per Bentley?)

Or could I have screwed something up in changing the harness? It was an '85
harness that required a few splices to fit my '84. Is there some wire that,
if not connected right, would cause these symptoms?

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