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Solved: Another no spark - all the usual suspects replaced already 200 1993

posted by  robbmcc on  Sun Jan 17 11:05 CST 2010
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last visit: Thu Oct 23 08:41 CST 2014
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This thread has been a shameful waste of space here on the brickboard as my no spark problem turned out to be one of the most basic types and I have to hang my head in shame here. When Art suggested pinging the ODB just to see if I get the 1-1-1 code as verification the ECU was powered up I discovered I was getting no codes at all - just no response for either the pin 6 or pin 2 codes. So back to basics I turned the key on and started verifying voltage on the downstream side of the fuses. When I got to fuse 6 when I pushed the DVM probe onto the fuse holder to make contact I suddenly heard the fuel pump power up. I cleaned it up and verified I get codes from obd and it starts right up. So the problem was bad contact at fuse 6 which apparently powers the ECU too. This just re-enforces the cleaning of the fuses as preventive maintenance. I know it was no more than 6 months ago that I cleaned and applied dielectric grease and already some of the 16 ampers had white corrosion on them. They really are an achilles heal on these cars. Thanks to all and especially Art for the valuable input.
Robb






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