Looking to see if anyone has any data for this pump. We've installed it on a 2019 Camaro LT1 with a Procharger. I used LT4 values in the file as a base, thinking I could adjust from there, but the pump is not making pressure under load. Exact pump in question is this pump - https://lsa-conversion-store.myshopi...-fuel-pump-lt4.
Have you checked your supply pressure? With no data log or tune file to look at, not much to be said. Doing a quick read on that website, looks like it should work with LT4 specs.
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Supply pressure is good. If we reinstall the stock pump and revert the tune, the stock pump builds pressure as normal. I would post the file, but I don't tune a lot of GM's and a buddy of mine helped me out with part of the tune. Being it's not 100% my work, I wouldn't feel comfortable posting it. My guess is the internal regulator is faulty. We'll ohm it out and see if we can determine anything. Thanks for the reply!
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