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Engine cuts out at idle when warmed up

I'm a happy boy!!!

Got her fixed!

Turns out that someone had the injector connectors swapped. I found the idea from searching here at hdtimeline. Put them on the right injectors and it runs like a dream.

Makes sense too. At cold start the system is pushing extra fuel so it was scavenging enough to run. At higher throttle, it was pushing more fuel and had more vacuum so it was able to pull enough fuel. But, at warm idle, it's pushing the least amount of fuel and would end up starving and dying. It also makes sense that it would run with one plug pulled because the system would push more fuel on one cylinder to bump up the idle and keep running.

Thanks for all the help. Even though I didn't get the answer on this thread, the suggestions helped me learn the system better.

Mark B
 
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