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EGR Delete?
I have a 1997 5.7L Vortec that is running rough, so rough that it stumbles and eventually stalls on me and won't restart, even with a boost. Have to wait an hour or so and then it fires back up (when boosted).
I thought I had plugged cats (original, 21 years old), but the more I look online the more it seems like it might be the EGR. How do I know for sure? And is it recommended that I delete it? Can I just unplug it for now? Appreciate any help I can find on this.
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