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Power Strokes
7.3 Aftermarket
Engine dying at full throttle
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[QUOTE="94.5stroker, post: 1478015, member: 1746"] I've got a 2001 f250 with my 7.3 out of my 94 running 238/100 s369 for drag racing. Last week I took it out to test it for drags this last weekend and when I did a four wheel drive launch it launched and died then started back up and went. I figured cps so I pulled the codes and had a cps code. So I swapped in a used one I had lying around and took one out of a spare engine I have with me to the track and it did the same thing with both sensors but no longer throws a cps code. Tonight I messed with all the wiring trying to get it to shut off but can't. So I'm wondering what is causing it to die when I launch. It does it in 2wd or 4wd as long as it's full throttle. Only other codes I'm getting are output speed sensor on tranny and vehicle speed sensor. I had the oss code before and swapped sensors with no luck and finally fixed a wire I thought was bad and it went away. Could either of those codes cause it to shut off? Most times it dies right after the launch and comes right back on but all the gauge lights (least wts i noticed) comes on like you shut the key off, but a couple times I had to restart it with the key. I didn't pull the pcm out but I could feel the chip through the hole i drilled in the cover for the wire and it feels tight, I taped it in with gorrilla tape when I put it in. Only other thing I did before we went to test was my gf was asking me what the switch was for my hydra and I showed her how it works and even put it in no stsrt which I had never done before. Could the no start setting on the hydra be causing me trouble? [/QUOTE]
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