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@Universal Elements

SBMech

Fixes Broken Stuff
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For some reason I can't post pictures in a PM, so I am linking them here.

97F250ECM.png


97F250H02.png


As I was saying in the PM, you might have damaged the PCM Power Relay, or if it's still shorted somewhere further up, holding down that 12V wire and preventing it from staying running.

Follow the "C" arrow and you can see what I am looking at, the power wire from the relay energizes all sorts of sensors etc after it comes out of the relay and heads down to the 02 sensors.

At the very top of the diagram is the fuses ( 22, 9, 16 the squiggly lines) feeding the block to the relays. Check those as well.


97F250(2).png


97F250(3).png


97F250(4).png


97F250(5).png
 
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SBMech

Fixes Broken Stuff
Joined
Jul 25, 2012
Messages
11,627
Reaction score
20,783
For the curious, this was information needed for a walk through trouble shooting of feed back lash from a shorted to ground 02 sensor that the harness melted on the exhaust.

The end result was that the short blew the MAF, keeping it from starting the injection sequence. It would crank, fire, then stall after a second. After repairing the short, replacing the MAF was the fix.
 
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